90959140955 has 4 divisors (see below), whose sum is σ = 109150969152. Its totient is φ = 72767312760.

The previous prime is 90959140873. The next prime is 90959140963. The reversal of 90959140955 is 55904195909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55904195909 = 103811 ⋅538519.

It is not a de Polignac number, because 90959140955 - 2²² = 90954946651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90959140955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9095914091 + ... + 9095914100.

It is an arithmetic number, because the mean of its divisors is an integer number (27287742288).

Almost surely, 2^90959140955 is an apocalyptic number.

90959140955 is a deficient number, since it is larger than the sum of its proper divisors (18191828197).

90959140955 is a wasteful number, since it uses less digits than its factorization.

90959140955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191828196.

The product of its (nonzero) digits is 3280500, while the sum is 56.

The spelling of 90959140955 in words is "ninety billion, nine hundred fifty-nine million, one hundred forty thousand, nine hundred fifty-five".