90101955415 has 16 divisors (see below), whose sum is σ = 108329208768. Its totient is φ = 71943745536.

The previous prime is 90101955413. The next prime is 90101955431. The reversal of 90101955415 is 51455910109.

It is a cyclic number.

It is not a de Polignac number, because 90101955415 - 2¹ = 90101955413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90101955413) 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, 16299382 + ... + 16304908.

It is an arithmetic number, because the mean of its divisors is an integer number (6770575548).

Almost surely, 2^90101955415 is an apocalyptic number.

90101955415 is a deficient number, since it is larger than the sum of its proper divisors (18227253353).

90101955415 is a wasteful number, since it uses less digits than its factorization.

90101955415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11178.

The product of its (nonzero) digits is 40500, while the sum is 40.

The spelling of 90101955415 in words is "ninety billion, one hundred one million, nine hundred fifty-five thousand, four hundred fifteen".