65420737208 has 16 divisors (see below), whose sum is σ = 123416423880. Its totient is φ = 32509690848.

The previous prime is 65420737159. The next prime is 65420737211. The reversal of 65420737208 is 80273702456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25083335 + ... + 25085942.

Almost surely, 2^65420737208 is an apocalyptic number.

It is an amenable number.

65420737208 is a deficient number, since it is larger than the sum of its proper divisors (57995686672).

65420737208 is a wasteful number, since it uses less digits than its factorization.

65420737208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50169446 (or 50169442 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 65420737208 in words is "sixty-five billion, four hundred twenty million, seven hundred thirty-seven thousand, two hundred eight".