15755752672 has 72 divisors (see below), whose sum is σ = 34131018600. Its totient is φ = 7154231040.

The previous prime is 15755752667. The next prime is 15755752687. The reversal of 15755752672 is 27625755751.

It is a super-2 number, since 2×15755752672² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5647854 + ... + 5650642.

It is an arithmetic number, because the mean of its divisors is an integer number (474041925).

Almost surely, 2^15755752672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15755752672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17065509300).

15755752672 is an abundant number, since it is smaller than the sum of its proper divisors (18375265928).

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

15755752672 is a wasteful number, since it uses less digits than its factorization.

15755752672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280 (or 4261 counting only the distinct ones).

The product of its digits is 5145000, while the sum is 52.

The spelling of 15755752672 in words is "fifteen billion, seven hundred fifty-five million, seven hundred fifty-two thousand, six hundred seventy-two".