65816072507 has 8 divisors (see below), whose sum is σ = 66826030656. Its totient is φ = 64811281032.

The previous prime is 65816072479. The next prime is 65816072519. The reversal of 65816072507 is 70527061856.

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 65816072507 - 2²⁴ = 65799295291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65816072557) 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, 1265993 + ... + 1316954.

It is an arithmetic number, because the mean of its divisors is an integer number (8353253832).

Almost surely, 2^65816072507 is an apocalyptic number.

65816072507 is a deficient number, since it is larger than the sum of its proper divisors (1009958149).

65816072507 is a wasteful number, since it uses less digits than its factorization.

65816072507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583337.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 65816072507 in words is "sixty-five billion, eight hundred sixteen million, seventy-two thousand, five hundred seven".