15955338461320 has 64 divisors (see below), whose sum is σ = 36564114355200. Its totient is φ = 6264768840960.

The previous prime is 15955338461299. The next prime is 15955338461327. The reversal of 15955338461320 is 2316483355951.

It is a super-2 number, since 2×15955338461320² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15955338461327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11616184 + ... + 12916903.

It is an arithmetic number, because the mean of its divisors is an integer number (571314286800).

Almost surely, 2^{15955338461320} is an apocalyptic number.

15955338461320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15955338461320 is an abundant number, since it is smaller than the sum of its proper divisors (20608775893880).

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

15955338461320 is a wasteful number, since it uses less digits than its factorization.

15955338461320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24533398 (or 24533394 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 55.

The spelling of 15955338461320 in words is "fifteen trillion, nine hundred fifty-five billion, three hundred thirty-eight million, four hundred sixty-one thousand, three hundred twenty".