90164860853 has 8 divisors (see below), whose sum is σ = 92108178360. Its totient is φ = 88236550080.

The previous prime is 90164860837. The next prime is 90164860939. The reversal of 90164860853 is 35806846109.

It can be written as a sum of positive squares in 4 ways, for example, as 4446489124 + 85718371729 = 66682^2 + 292777^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 90164860853 - 2⁴ = 90164860837 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 (90164860453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3739538 + ... + 3763571.

It is an arithmetic number, because the mean of its divisors is an integer number (11513522295).

Almost surely, 2^90164860853 is an apocalyptic number.

It is an amenable number.

90164860853 is a deficient number, since it is larger than the sum of its proper divisors (1943317507).

90164860853 is a wasteful number, since it uses less digits than its factorization.

90164860853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7503367.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 90164860853 in words is "ninety billion, one hundred sixty-four million, eight hundred sixty thousand, eight hundred fifty-three".