90041615999 has 12 divisors (see below), whose sum is σ = 100620082224. Its totient is φ = 80284779072.

The previous prime is 90041615981. The next prime is 90041616011. The reversal of 90041615999 is 99951614009.

It is not a de Polignac number, because 90041615999 - 2¹⁶ = 90041550463 is a prime.

It is a super-2 number, since 2×90041615999² (a number of 23 digits) contains 22 as substring.

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 90041615999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90041615299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7329827 + ... + 7342100.

It is an arithmetic number, because the mean of its divisors is an integer number (8385006852).

Almost surely, 2^90041615999 is an apocalyptic number.

90041615999 is a deficient number, since it is larger than the sum of its proper divisors (10578466225).

90041615999 is a wasteful number, since it uses less digits than its factorization.

90041615999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14671982 (or 14671963 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 53.

The spelling of 90041615999 in words is "ninety billion, forty-one million, six hundred fifteen thousand, nine hundred ninety-nine".