15691544490160 has 640 divisors, whose sum is σ = 50541408000000. Its totient is φ = 4473634959360.

The previous prime is 15691544490157. The next prime is 15691544490187. The reversal of 15691544490160 is 6109444519651.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 166266666 + ... + 166361014.

It is an arithmetic number, because the mean of its divisors is an integer number (78970950000).

Almost surely, 2^{15691544490160} is an apocalyptic number.

15691544490160 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 15691544490160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25270704000000).

15691544490160 is an abundant number, since it is smaller than the sum of its proper divisors (34849863509840).

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

15691544490160 is a wasteful number, since it uses less digits than its factorization.

15691544490160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94442 (or 94422 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 15691544490160 in words is "fifteen trillion, six hundred ninety-one billion, five hundred forty-four million, four hundred ninety thousand, one hundred sixty".