326506031136 has 120 divisors (see below), whose sum is σ = 986198029740. Its totient is φ = 105893816832.

The previous prime is 326506031123. The next prime is 326506031179. The reversal of 326506031136 is 631130605623.

326506031136 is a `hidden beast` number, since 3 + 2 + 6 + 5 + 0 + 603 + 11 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 219867210000 + 106638821136 = 468900^2 + 326556^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 326506031136.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1606351 + ... + 1798158.

Almost surely, 2^326506031136 is an apocalyptic number.

326506031136 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

326506031136 is an abundant number, since it is smaller than the sum of its proper divisors (659691998604).

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

326506031136 is a wasteful number, since it uses less digits than its factorization.

326506031136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404568 (or 3404551 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

Adding to 326506031136 its reverse (631130605623), we get a palindrome (957636636759).

The spelling of 326506031136 in words is "three hundred twenty-six billion, five hundred six million, thirty-one thousand, one hundred thirty-six".