2015708032128 has 64 divisors (see below), whose sum is σ = 6119113677120. Its totient is φ = 575916579840.

The previous prime is 2015708032127. The next prime is 2015708032139. The reversal of 2015708032128 is 8212308075102.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (2015708032127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374943003 + ... + 374948378.

It is an arithmetic number, because the mean of its divisors is an integer number (95611151205).

Almost surely, 2^{2015708032128} is an apocalyptic number.

2015708032128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2015708032128 is an abundant number, since it is smaller than the sum of its proper divisors (4103405644992).

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

2015708032128 is an equidigital number, since it uses as much as digits as its factorization.

2015708032128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749891405 (or 749891393 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 2015708032128 in words is "two trillion, fifteen billion, seven hundred eight million, thirty-two thousand, one hundred twenty-eight".