90816196658 has 16 divisors (see below), whose sum is σ = 148622584320. Its totient is φ = 41276127600.

The previous prime is 90816196657. The next prime is 90816196721. The reversal of 90816196658 is 85669161809.

It is a junction number, because it is equal to n+sod(n) for n = 90816196597 and 90816196606.

It is not an unprimeable number, because it can be changed into a prime (90816196657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42863 + ... + 428333.

It is an arithmetic number, because the mean of its divisors is an integer number (9288911520).

Almost surely, 2^90816196658 is an apocalyptic number.

90816196658 is a deficient number, since it is larger than the sum of its proper divisors (57806387662).

90816196658 is a wasteful number, since it uses less digits than its factorization.

90816196658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396193.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The spelling of 90816196658 in words is "ninety billion, eight hundred sixteen million, one hundred ninety-six thousand, six hundred fifty-eight".