90564066776 has 32 divisors (see below), whose sum is σ = 173067840000. Its totient is φ = 44420656896.

The previous prime is 90564066743. The next prime is 90564066793. The reversal of 90564066776 is 67766046509.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410351 + ... + 591198.

It is an arithmetic number, because the mean of its divisors is an integer number (5408370000).

Almost surely, 2^90564066776 is an apocalyptic number.

It is an amenable number.

90564066776 is a deficient number, since it is larger than the sum of its proper divisors (82503773224).

90564066776 is a wasteful number, since it uses less digits than its factorization.

90564066776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001771 (or 1001767 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 90564066776 in words is "ninety billion, five hundred sixty-four million, sixty-six thousand, seven hundred seventy-six".