331506486756 has 135 divisors (see below), whose sum is σ = 898351935481. Its totient is φ = 106595014176.

The previous prime is 331506486683. The next prime is 331506486811. The reversal of 331506486756 is 657684605133.

The square root of 331506486756 is 575766.

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

331506486756 is a `hidden beast` number, since 3 + 3 + 1 + 506 + 4 + 86 + 7 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 173833960356 + 157672526400 = 416934^2 + 397080^2 .

It is a super-2 number, since 2×331506486756² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 300549301 + ... + 300550403.

Almost surely, 2^331506486756 is an apocalyptic number.

331506486756 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

331506486756 is the 575766-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331506486756

331506486756 is an abundant number, since it is smaller than the sum of its proper divisors (566845448725).

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

331506486756 is an equidigital number, since it uses as much as digits as its factorization.

331506486756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 331506486756 in words is "three hundred thirty-one billion, five hundred six million, four hundred eighty-six thousand, seven hundred fifty-six".