90411371605 has 8 divisors (see below), whose sum is σ = 111139832664. Its totient is φ = 70564972800.

The previous prime is 90411371599. The next prime is 90411371627. The reversal of 90411371605 is 50617311409.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8820590724 + 81590780881 = 93918^2 + 285641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90411371605 - 2¹⁷ = 90411240533 is a prime.

It is a super-2 number, since 2×90411371605² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220515336 + ... + 220515745.

It is an arithmetic number, because the mean of its divisors is an integer number (13892479083).

Almost surely, 2^90411371605 is an apocalyptic number.

It is an amenable number.

90411371605 is a deficient number, since it is larger than the sum of its proper divisors (20728461059).

90411371605 is a wasteful number, since it uses less digits than its factorization.

90411371605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441031127.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 90411371605 in words is "ninety billion, four hundred eleven million, three hundred seventy-one thousand, six hundred five".