90065995272 has 96 divisors (see below), whose sum is σ = 272594518560. Its totient is φ = 26627040000.

The previous prime is 90065995267. The next prime is 90065995277. The reversal of 90065995272 is 27259956009.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90065995267) and next prime (90065995277).

It is a super-2 number, since 2×90065995272² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90065995277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1354354 + ... + 1419297.

It is an arithmetic number, because the mean of its divisors is an integer number (2839526235).

Almost surely, 2^90065995272 is an apocalyptic number.

It is an amenable number.

90065995272 is an abundant number, since it is smaller than the sum of its proper divisors (182528523288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90065995272 is a wasteful number, since it uses less digits than its factorization.

90065995272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773715 (or 2773708 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 90065995272 in words is "ninety billion, sixty-five million, nine hundred ninety-five thousand, two hundred seventy-two".