90964550505 has 16 divisors (see below), whose sum is σ = 149476883904. Its totient is φ = 47203225920.

The previous prime is 90964550459. The next prime is 90964550507. The reversal of 90964550505 is 50505546909.

It is not a de Polignac number, because 90964550505 - 2¹¹ = 90964548457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90964550507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81949491 + ... + 81950600.

It is an arithmetic number, because the mean of its divisors is an integer number (9342305244).

Almost surely, 2^90964550505 is an apocalyptic number.

It is an amenable number.

90964550505 is a deficient number, since it is larger than the sum of its proper divisors (58512333399).

90964550505 is a wasteful number, since it uses less digits than its factorization.

90964550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163900136.

The product of its (nonzero) digits is 1215000, while the sum is 48.

The spelling of 90964550505 in words is "ninety billion, nine hundred sixty-four million, five hundred fifty thousand, five hundred five".