161260927954 has 64 divisors (see below), whose sum is σ = 289962374400. Its totient is φ = 67206048000.

The previous prime is 161260927913. The next prime is 161260927987. The reversal of 161260927954 is 459729062161.

It is a super-2 number, since 2×161260927954² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4088829 + ... + 4128079.

It is an arithmetic number, because the mean of its divisors is an integer number (4530662100).

Almost surely, 2^161260927954 is an apocalyptic number.

161260927954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161260927954 is a deficient number, since it is larger than the sum of its proper divisors (128701446446).

161260927954 is a wasteful number, since it uses less digits than its factorization.

161260927954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39440 (or 39426 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 161260927954 in words is "one hundred sixty-one billion, two hundred sixty million, nine hundred twenty-seven thousand, nine hundred fifty-four".