90967168985 has 24 divisors (see below), whose sum is σ = 137127375168. Its totient is φ = 56706804000.

The previous prime is 90967168973. The next prime is 90967168991. The reversal of 90967168985 is 58986176909.

It is not a de Polignac number, because 90967168985 - 2¹⁰ = 90967167961 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 10735691 + ... + 10744160.

It is an arithmetic number, because the mean of its divisors is an integer number (5713640632).

Almost surely, 2^90967168985 is an apocalyptic number.

It is an amenable number.

90967168985 is a deficient number, since it is larger than the sum of its proper divisors (46160206183).

90967168985 is a wasteful number, since it uses less digits than its factorization.

90967168985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21479885 (or 21479874 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 68.

It can be divided in two parts, 90967 and 168985, that added together give a palindrome (259952).

The spelling of 90967168985 in words is "ninety billion, nine hundred sixty-seven million, one hundred sixty-eight thousand, nine hundred eighty-five".