90320855569 has 8 divisors (see below), whose sum is σ = 106783277760. Its totient is φ = 74748294096.

The previous prime is 90320855567. The next prime is 90320855587. The reversal of 90320855569 is 96555802309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90320855569 - 2¹ = 90320855567 is a prime.

It is a super-2 number, since 2×90320855569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90320855563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222464959 + ... + 222465364.

It is an arithmetic number, because the mean of its divisors is an integer number (13347909720).

Almost surely, 2^90320855569 is an apocalyptic number.

It is an amenable number.

90320855569 is a deficient number, since it is larger than the sum of its proper divisors (16462422191).

90320855569 is a wasteful number, since it uses less digits than its factorization.

90320855569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444930359.

The product of its (nonzero) digits is 2916000, while the sum is 52.

The spelling of 90320855569 in words is "ninety billion, three hundred twenty million, eight hundred fifty-five thousand, five hundred sixty-nine".