65672613434 has 4 divisors (see below), whose sum is σ = 98508920154. Its totient is φ = 32836306716.

The previous prime is 65672613427. The next prime is 65672613451. The reversal of 65672613434 is 43431627656.

65672613434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43900725625 + 21771887809 = 209525^2 + 147553^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16418153357 + ... + 16418153360.

Almost surely, 2^65672613434 is an apocalyptic number.

65672613434 is a deficient number, since it is larger than the sum of its proper divisors (32836306720).

65672613434 is a wasteful number, since it uses less digits than its factorization.

65672613434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32836306719.

The product of its digits is 2177280, while the sum is 47.

The spelling of 65672613434 in words is "sixty-five billion, six hundred seventy-two million, six hundred thirteen thousand, four hundred thirty-four".