151995497956 has 9 divisors (see below), whose sum is σ = 265993485961. Its totient is φ = 75997359112.

The previous prime is 151995497939. The next prime is 151995497981. The reversal of 151995497956 is 659794599151.

The square root of 151995497956 is 389866.

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., 6517332900 + 145478165056 = 80730^2 + 381416^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 682266 + ... + 877198.

Almost surely, 2^151995497956 is an apocalyptic number.

151995497956 is the 389866-th square number.

It is an amenable number.

151995497956 is a deficient number, since it is larger than the sum of its proper divisors (113997988005).

151995497956 is an frugal number, since it uses more digits than its factorization.

151995497956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389870 (or 194935 counting only the distinct ones).

The product of its digits is 137781000, while the sum is 70.

It can be divided in two parts, 15199 and 5497956, that added together give a palindrome (5513155).

The spelling of 151995497956 in words is "one hundred fifty-one billion, nine hundred ninety-five million, four hundred ninety-seven thousand, nine hundred fifty-six".