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125668838880 = 253351317235997
BaseRepresentation
bin111010100001001110…
…0100100110111100000
3110000101002002110112000
41311002130210313200
54024332210321010
6133421555204000
712036122335314
oct1650234446740
9400332073460
10125668838880
1149328868732
12204322a6600
13bb097949c0
14612218db44
1534079c67c0
hex1d42724de0

125668838880 has 1536 divisors, whose sum is σ = 537701068800. Its totient is φ = 27094155264.

The previous prime is 125668838879. The next prime is 125668838983. The reversal of 125668838880 is 88838866521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1295554992 + ... + 1295555088.

It is an arithmetic number, because the mean of its divisors is an integer number (350065800).

Almost surely, 2125668838880 is an apocalyptic number.

125668838880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125668838880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268850534400).

125668838880 is an abundant number, since it is smaller than the sum of its proper divisors (412032229920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125668838880 is a wasteful number, since it uses less digits than its factorization.

125668838880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 63.

The spelling of 125668838880 in words is "one hundred twenty-five billion, six hundred sixty-eight million, eight hundred thirty-eight thousand, eight hundred eighty".