89770825655 has 16 divisors (see below), whose sum is σ = 123133739520. Its totient is φ = 61547405472.

The previous prime is 89770825607. The next prime is 89770825699. The reversal of 89770825655 is 55652807798.

It is not a de Polignac number, because 89770825655 - 2⁸ = 89770825399 is a prime.

It is a super-2 number, since 2×89770825655² (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 15 ways as a sum of consecutive naturals, for example, 25406 + ... + 424484.

It is an arithmetic number, because the mean of its divisors is an integer number (7695858720).

Almost surely, 2^89770825655 is an apocalyptic number.

89770825655 is a deficient number, since it is larger than the sum of its proper divisors (33362913865).

89770825655 is a wasteful number, since it uses less digits than its factorization.

89770825655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405518.

The product of its (nonzero) digits is 42336000, while the sum is 62.

The spelling of 89770825655 in words is "eighty-nine billion, seven hundred seventy million, eight hundred twenty-five thousand, six hundred fifty-five".