90171811553160 has 64 divisors (see below), whose sum is σ = 270532070222400. Its totient is φ = 24044337697536.

The previous prime is 90171811553149. The next prime is 90171811553171. The reversal of 90171811553160 is 6135511817109.

It is an interprime number because it is at equal distance from previous prime (90171811553149) and next prime (90171811553171).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21144775 + ... + 25048854.

It is an arithmetic number, because the mean of its divisors is an integer number (4227063597225).

Almost surely, 2^{90171811553160} is an apocalyptic number.

It is an amenable number.

90171811553160 is an abundant number, since it is smaller than the sum of its proper divisors (180360258669240).

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

90171811553160 is a wasteful number, since it uses less digits than its factorization.

90171811553160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46209910 (or 46209906 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 90171811553160 in words is "ninety trillion, one hundred seventy-one billion, eight hundred eleven million, five hundred fifty-three thousand, one hundred sixty".