90780600366 has 64 divisors (see below), whose sum is σ = 203918164800. Its totient is φ = 29932996608.

The previous prime is 90780600347. The next prime is 90780600373. The reversal of 90780600366 is 66300608709.

90780600366 is a `hidden beast` number, since 9 + 0 + 7 + 8 + 0 + 600 + 36 + 6 = 666.

It is a super-2 number, since 2×90780600366² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 15464880 + ... + 15470748.

It is an arithmetic number, because the mean of its divisors is an integer number (3186221325).

Almost surely, 2^90780600366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90780600366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101959082400).

90780600366 is an abundant number, since it is smaller than the sum of its proper divisors (113137564434).

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

90780600366 is a wasteful number, since it uses less digits than its factorization.

90780600366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8930 (or 8924 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 90780600366 in words is "ninety billion, seven hundred eighty million, six hundred thousand, three hundred sixty-six".