65628947115 has 40 divisors (see below), whose sum is σ = 117681759888. Its totient is φ = 34991455680.

The previous prime is 65628947081. The next prime is 65628947179. The reversal of 65628947115 is 51174982656.

It is a happy number.

65628947115 is a `hidden beast` number, since 6 + 5 + 628 + 9 + 4 + 7 + 1 + 1 + 5 = 666.

It is not a de Polignac number, because 65628947115 - 2⁷ = 65628946987 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1411224 + ... + 1456986.

Almost surely, 2^65628947115 is an apocalyptic number.

65628947115 is a deficient number, since it is larger than the sum of its proper divisors (52052812773).

65628947115 is a wasteful number, since it uses less digits than its factorization.

65628947115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49321 (or 49312 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 65628947115 in words is "sixty-five billion, six hundred twenty-eight million, nine hundred forty-seven thousand, one hundred fifteen".