125155489536 has 648 divisors, whose sum is σ = 472847251968. Its totient is φ = 31449600000.

The previous prime is 125155489531. The next prime is 125155489559. The reversal of 125155489536 is 635984551521.

125155489536 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 5 + 548 + 95 + 3 + 6 = 666.

125155489536 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125155489531) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 38495911 + ... + 38499161.

Almost surely, 2^125155489536 is an apocalyptic number.

125155489536 is a gapful number since it is divisible by the number (16) 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 125155489536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236423625984).

125155489536 is an abundant number, since it is smaller than the sum of its proper divisors (347691762432).

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

125155489536 is a wasteful number, since it uses less digits than its factorization.

125155489536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329 (or 3305 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 54.

The spelling of 125155489536 in words is "one hundred twenty-five billion, one hundred fifty-five million, four hundred eighty-nine thousand, five hundred thirty-six".