90508167478500 has 96 divisors (see below), whose sum is σ = 263902517598720. Its totient is φ = 24104125440000.

The previous prime is 90508167478471. The next prime is 90508167478517. The reversal of 90508167478500 is 587476180509.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38078476 + ... + 40385475.

It is an arithmetic number, because the mean of its divisors is an integer number (2748984558320).

Almost surely, 2^{90508167478500} is an apocalyptic number.

It is an amenable number.

90508167478500 is an abundant number, since it is smaller than the sum of its proper divisors (173394350120220).

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

90508167478500 is a wasteful number, since it uses less digits than its factorization.

90508167478500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78464742 (or 78464730 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 90508167478500 in words is "ninety trillion, five hundred eight billion, one hundred sixty-seven million, four hundred seventy-eight thousand, five hundred".