90481331916 has 36 divisors (see below), whose sum is σ = 240754423000. Its totient is φ = 28573051968.

The previous prime is 90481331893. The next prime is 90481331917. The reversal of 90481331916 is 61913318409.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (90481331917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66140641 + ... + 66142008.

Almost surely, 2^90481331916 is an apocalyptic number.

It is an amenable number.

90481331916 is an abundant number, since it is smaller than the sum of its proper divisors (150273091084).

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

90481331916 is a wasteful number, since it uses less digits than its factorization.

90481331916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132282678 (or 132282673 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

It can be divided in two parts, 9048 and 1331916, that added together give a square (1340964 = 1158²).

The spelling of 90481331916 in words is "ninety billion, four hundred eighty-one million, three hundred thirty-one thousand, nine hundred sixteen".