130644138510 has 96 divisors (see below), whose sum is σ = 357844500000. Its totient is φ = 32977870848.

The previous prime is 130644138479. The next prime is 130644138517. The reversal of 130644138510 is 15831446031.

130644138510 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 4 + 4 + 138 + 510 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130644138517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2105206 + ... + 2166374.

It is an arithmetic number, because the mean of its divisors is an integer number (3727546875).

Almost surely, 2^130644138510 is an apocalyptic number.

130644138510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130644138510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178922250000).

130644138510 is an abundant number, since it is smaller than the sum of its proper divisors (227200361490).

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

130644138510 is a wasteful number, since it uses less digits than its factorization.

130644138510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62450 (or 62447 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 130644138510 in words is "one hundred thirty billion, six hundred forty-four million, one hundred thirty-eight thousand, five hundred ten".