90442515366 has 48 divisors (see below), whose sum is σ = 224914139424. Its totient is φ = 25729805952.

The previous prime is 90442515341. The next prime is 90442515377. The reversal of 90442515366 is 66351524409.

90442515366 is a `hidden beast` number, since 90 + 4 + 4 + 25 + 1 + 536 + 6 = 666.

It is a super-2 number, since 2×90442515366² (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 23 ways as a sum of consecutive naturals, for example, 1510981 + ... + 1569696.

It is an arithmetic number, because the mean of its divisors is an integer number (4685711238).

Almost surely, 2^90442515366 is an apocalyptic number.

90442515366 is an abundant number, since it is smaller than the sum of its proper divisors (134471624058).

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

90442515366 is a wasteful number, since it uses less digits than its factorization.

90442515366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080925 (or 3080922 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 90442515366 in words is "ninety billion, four hundred forty-two million, five hundred fifteen thousand, three hundred sixty-six".