65593949138 has 32 divisors (see below), whose sum is σ = 101797093440. Its totient is φ = 31678205440.

The previous prime is 65593949131. The next prime is 65593949153. The reversal of 65593949138 is 83194939556.

It is not an unprimeable number, because it can be changed into a prime (65593949131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9438581 + ... + 9445527.

It is an arithmetic number, because the mean of its divisors is an integer number (3181159170).

Almost surely, 2^65593949138 is an apocalyptic number.

65593949138 is a deficient number, since it is larger than the sum of its proper divisors (36203144302).

65593949138 is a wasteful number, since it uses less digits than its factorization.

65593949138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122.

The product of its digits is 31492800, while the sum is 62.

The spelling of 65593949138 in words is "sixty-five billion, five hundred ninety-three million, nine hundred forty-nine thousand, one hundred thirty-eight".