89555520999 has 16 divisors (see below), whose sum is σ = 139369079808. Its totient is φ = 50085761952.

The previous prime is 89555520937. The next prime is 89555521043. The reversal of 89555520999 is 99902555598.

It is not a de Polignac number, because 89555520999 - 2²⁴ = 89538743783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89555520199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45366552 + ... + 45368525.

It is an arithmetic number, because the mean of its divisors is an integer number (8710567488).

Almost surely, 2^89555520999 is an apocalyptic number.

89555520999 is a deficient number, since it is larger than the sum of its proper divisors (49813558809).

89555520999 is a wasteful number, since it uses less digits than its factorization.

89555520999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90735134.

The product of its (nonzero) digits is 65610000, while the sum is 66.

The spelling of 89555520999 in words is "eighty-nine billion, five hundred fifty-five million, five hundred twenty thousand, nine hundred ninety-nine".