136400216976 has 75 divisors (see below), whose sum is σ = 394820286091. Its totient is φ = 45462307104.

The previous prime is 136400216963. The next prime is 136400216989. The reversal of 136400216976 is 679612004631.

The square root of 136400216976 is 369324.

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

136400216976 is a `hidden beast` number, since 1 + 364 + 0 + 0 + 216 + 9 + 76 = 666.

It is an interprime number because it is at equal distance from previous prime (136400216963) and next prime (136400216989).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13290535 + ... + 13300793.

Almost surely, 2^136400216976 is an apocalyptic number.

136400216976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

136400216976 is the 369324-th square number.

It is an amenable number.

136400216976 is an abundant number, since it is smaller than the sum of its proper divisors (258420069115).

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

136400216976 is an frugal number, since it uses more digits than its factorization.

136400216976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20538 (or 10264 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 136400216976 in words is "one hundred thirty-six billion, four hundred million, two hundred sixteen thousand, nine hundred seventy-six".