15755941680 has 80 divisors (see below), whose sum is σ = 48857465184. Its totient is φ = 4200376320.

The previous prime is 15755941667. The next prime is 15755941687. The reversal of 15755941680 is 8614955751.

15755941680 = T₂₆₄₄₀ + T₂₆₄₄₁ + ... + T₂₆₄₈₄.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×15755941680² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (15755941687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096140 + ... + 1110420.

Almost surely, 2^15755941680 is an apocalyptic number.

15755941680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15755941680 is an abundant number, since it is smaller than the sum of its proper divisors (33101523504).

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

15755941680 is a wasteful number, since it uses less digits than its factorization.

15755941680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18894 (or 18888 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 15755941680 in words is "fifteen billion, seven hundred fifty-five million, nine hundred forty-one thousand, six hundred eighty".