19956082756 has 81 divisors (see below), whose sum is σ = 37978423581. Its totient is φ = 9174379104.

The previous prime is 19956082711. The next prime is 19956082759. The reversal of 19956082756 is 65728065991.

The square root of 19956082756 is 141266.

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., 17856976900 + 2099105856 = 133630^2 + 45816^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19956082756.

It is not an unprimeable number, because it can be changed into a prime (19956082759) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 240434691 + ... + 240434773.

Almost surely, 2^19956082756 is an apocalyptic number.

19956082756 is the 141266-th square number.

It is an amenable number.

19956082756 is a deficient number, since it is larger than the sum of its proper divisors (18022340825).

19956082756 is an equidigital number, since it uses as much as digits as its factorization.

19956082756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 19956082756 in words is "nineteen billion, nine hundred fifty-six million, eighty-two thousand, seven hundred fifty-six".