151852237791556 has 9 divisors (see below), whose sum is σ = 265741459265149. Its totient is φ = 75926106572944.

The previous prime is 151852237791509. The next prime is 151852237791601. The reversal of 151852237791556 is 655197732258151.

The square root of 151852237791556 is 12322834.

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., 36152441036100 + 115699796755456 = 6012690^2 + 10756384^2 .

It is a super-2 number, since 2×151852237791556² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151852237791491 and 151852237791500.

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, 21564960 + ... + 27726376.

Almost surely, 2^{151852237791556} is an apocalyptic number.

151852237791556 is the 12322834-th square number.

It is an amenable number.

151852237791556 is a deficient number, since it is larger than the sum of its proper divisors (113889221473593).

151852237791556 is an frugal number, since it uses more digits than its factorization.

151852237791556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12322838 (or 6161419 counting only the distinct ones).

The product of its digits is 158760000, while the sum is 67.

The spelling of 151852237791556 in words is "one hundred fifty-one trillion, eight hundred fifty-two billion, two hundred thirty-seven million, seven hundred ninety-one thousand, five hundred fifty-six".