90666946475 has 24 divisors (see below), whose sum is σ = 128988032928. Its totient is φ = 61929676800.

The previous prime is 90666946451. The next prime is 90666946483. The reversal of 90666946475 is 57464966609.

It is not a de Polignac number, because 90666946475 - 2¹⁸ = 90666684331 is a prime.

It is a Duffinian 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, 962996 + ... + 1052945.

It is an arithmetic number, because the mean of its divisors is an integer number (5374501372).

Almost surely, 2^90666946475 is an apocalyptic number.

90666946475 is a deficient number, since it is larger than the sum of its proper divisors (38321086453).

90666946475 is a wasteful number, since it uses less digits than its factorization.

90666946475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016215 (or 2016210 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 90666946475 in words is "ninety billion, six hundred sixty-six million, nine hundred forty-six thousand, four hundred seventy-five".