90333909136 has 45 divisors (see below), whose sum is σ = 181335286873. Its totient is φ = 43592642240.

The previous prime is 90333909119. The next prime is 90333909143. The reversal of 90333909136 is 63190933309.

The square root of 90333909136 is 300556.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 47368910736 + 42964998400 = 217644^2 + 207280^2 .

It is a super-2 number, since 2×90333909136² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34863201 + ... + 34865791.

Almost surely, 2^90333909136 is an apocalyptic number.

90333909136 is the 300556-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90333909136

90333909136 is an abundant number, since it is smaller than the sum of its proper divisors (91001377737).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90333909136 is an frugal number, since it uses more digits than its factorization.

90333909136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248 (or 2622 counting only the distinct ones).

The product of its (nonzero) digits is 354294, while the sum is 46.

The spelling of 90333909136 in words is "ninety billion, three hundred thirty-three million, nine hundred nine thousand, one hundred thirty-six".