90554632905 has 32 divisors (see below), whose sum is σ = 158617589760. Its totient is φ = 43750111680.

The previous prime is 90554632897. The next prime is 90554632943. The reversal of 90554632905 is 50923645509.

It is a happy number.

It is not a de Polignac number, because 90554632905 - 2³ = 90554632897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 922945 + ... + 1016334.

It is an arithmetic number, because the mean of its divisors is an integer number (4956799680).

Almost surely, 2^90554632905 is an apocalyptic number.

It is an amenable number.

90554632905 is a deficient number, since it is larger than the sum of its proper divisors (68062956855).

90554632905 is a wasteful number, since it uses less digits than its factorization.

90554632905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939581.

The product of its (nonzero) digits is 1458000, while the sum is 48.

The spelling of 90554632905 in words is "ninety billion, five hundred fifty-four million, six hundred thirty-two thousand, nine hundred five".