65151606636 has 48 divisors (see below), whose sum is σ = 170809480800. Its totient is φ = 21473185536.

The previous prime is 65151606617. The next prime is 65151606643. The reversal of 65151606636 is 63660615156.

65151606636 is a `hidden beast` number, since 6 + 5 + 1 + 5 + 1 + 6 + 0 + 6 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 65151606591 and 65151606600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3379465 + ... + 3398688.

It is an arithmetic number, because the mean of its divisors is an integer number (3558530850).

Almost surely, 2^65151606636 is an apocalyptic number.

It is an amenable number.

65151606636 is an abundant number, since it is smaller than the sum of its proper divisors (105657874164).

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

65151606636 is a wasteful number, since it uses less digits than its factorization.

65151606636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778255 (or 6778247 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 65151606636 in words is "sixty-five billion, one hundred fifty-one million, six hundred six thousand, six hundred thirty-six".