65672235408 has 80 divisors (see below), whose sum is σ = 182740178880. Its totient is φ = 20202788352.

The previous prime is 65672235313. The next prime is 65672235449. The reversal of 65672235408 is 80453227656.

65672235408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 5028535 + ... + 5041577.

It is an arithmetic number, because the mean of its divisors is an integer number (2284252236).

Almost surely, 2^65672235408 is an apocalyptic number.

It is an amenable number.

65672235408 is an abundant number, since it is smaller than the sum of its proper divisors (117067943472).

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

65672235408 is a wasteful number, since it uses less digits than its factorization.

65672235408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21136 (or 21130 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 65672235408 in words is "sixty-five billion, six hundred seventy-two million, two hundred thirty-five thousand, four hundred eight".