90567333621 has 96 divisors (see below), whose sum is σ = 145297152000. Its totient is φ = 54111006720.

The previous prime is 90567333617. The next prime is 90567333667. The reversal of 90567333621 is 12633376509.

90567333621 is a `hidden beast` number, since 9 + 0 + 567 + 33 + 36 + 21 = 666.

It is not a de Polignac number, because 90567333621 - 2² = 90567333617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90567333221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 86336305 + ... + 86337353.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512000).

Almost surely, 2^90567333621 is an apocalyptic number.

It is an amenable number.

90567333621 is a deficient number, since it is larger than the sum of its proper divisors (54729818379).

90567333621 is a wasteful number, since it uses less digits than its factorization.

90567333621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The spelling of 90567333621 in words is "ninety billion, five hundred sixty-seven million, three hundred thirty-three thousand, six hundred twenty-one".