131648511556 has 27 divisors (see below), whose sum is σ = 235923202431. Its totient is φ = 64278220104.

The previous prime is 131648511541. The next prime is 131648511569. The reversal of 131648511556 is 655115846131.

The square root of 131648511556 is 362834.

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

It is a super-2 number, since 2×131648511556² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31201615 + ... + 31205833.

Almost surely, 2^131648511556 is an apocalyptic number.

131648511556 is the 362834-th square number.

It is an amenable number.

131648511556 is a deficient number, since it is larger than the sum of its proper divisors (104274690875).

131648511556 is an frugal number, since it uses more digits than its factorization.

131648511556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528 (or 4264 counting only the distinct ones).

The product of its digits is 432000, while the sum is 46.

It can be divided in two parts, 131648 and 511556, that added together give a square (643204 = 802²).

The spelling of 131648511556 in words is "one hundred thirty-one billion, six hundred forty-eight million, five hundred eleven thousand, five hundred fifty-six".