65420737199 has 8 divisors (see below), whose sum is σ = 67748685312. Its totient is φ = 63129449880.

The previous prime is 65420737159. The next prime is 65420737211. The reversal of 65420737199 is 99173702456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65420737199 - 2²⁰ = 65419688623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65420737199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65420737139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9161567 + ... + 9168704.

It is an arithmetic number, because the mean of its divisors is an integer number (8468585664).

Almost surely, 2^65420737199 is an apocalyptic number.

65420737199 is a deficient number, since it is larger than the sum of its proper divisors (2327948113).

65420737199 is a wasteful number, since it uses less digits than its factorization.

65420737199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18330397.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 65420737199 in words is "sixty-five billion, four hundred twenty million, seven hundred thirty-seven thousand, one hundred ninety-nine".