65421362176 has 33 divisors (see below), whose sum is σ = 130795200021. Its totient is φ = 32706588672.

The previous prime is 65421362113. The next prime is 65421362177. The reversal of 65421362176 is 67126312456.

The square root of 65421362176 is 255776.

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., 5776000000 + 59645362176 = 76000^2 + 244224^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65421362177) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8180836 + ... + 8188828.

Almost surely, 2^65421362176 is an apocalyptic number.

65421362176 is the 255776-th square number.

It is an amenable number.

65421362176 is a deficient number, since it is larger than the sum of its proper divisors (65373837845).

65421362176 is an frugal number, since it uses more digits than its factorization.

65421362176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16006 (or 7995 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The spelling of 65421362176 in words is "sixty-five billion, four hundred twenty-one million, three hundred sixty-two thousand, one hundred seventy-six".