89820163569 has 64 divisors (see below), whose sum is σ = 128393441280. Its totient is φ = 55734497280.

The previous prime is 89820163549. The next prime is 89820163583. The reversal of 89820163569 is 96536102898.

It is not a de Polignac number, because 89820163569 - 2⁷ = 89820163441 is a prime.

It is a super-2 number, since 2×89820163569² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89820163529) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 133462017 + ... + 133462689.

It is an arithmetic number, because the mean of its divisors is an integer number (2006147520).

Almost surely, 2^89820163569 is an apocalyptic number.

89820163569 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

89820163569 is a deficient number, since it is larger than the sum of its proper divisors (38573277711).

89820163569 is a wasteful number, since it uses less digits than its factorization.

89820163569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102.

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 89820163569 in words is "eighty-nine billion, eight hundred twenty million, one hundred sixty-three thousand, five hundred sixty-nine".