90118655 has 16 divisors (see below), whose sum is σ = 119911968. Its totient is φ = 64464000.

The previous prime is 90118621. The next prime is 90118663. The reversal of 90118655 is 55681109.

It is not a de Polignac number, because 90118655 - 2⁶ = 90118591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10076 + ... + 16785.

It is an arithmetic number, because the mean of its divisors is an integer number (7494498).

Almost surely, 2^90118655 is an apocalyptic number.

90118655 is a deficient number, since it is larger than the sum of its proper divisors (29793313).

90118655 is a wasteful number, since it uses less digits than its factorization.

90118655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26938.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 90118655 is about 9493.0845882674. The cubic root of 90118655 is about 448.3373293115.

The spelling of 90118655 in words is "ninety million, one hundred eighteen thousand, six hundred fifty-five".