65720206610 has 16 divisors (see below), whose sum is σ = 118512645696. Its totient is φ = 26240021808.

The previous prime is 65720206567. The next prime is 65720206633. The reversal of 65720206610 is 1660202756.

65720206610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65720206610² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6001862 + ... + 6012801.

It is an arithmetic number, because the mean of its divisors is an integer number (7407040356).

Almost surely, 2^65720206610 is an apocalyptic number.

65720206610 is a deficient number, since it is larger than the sum of its proper divisors (52792439086).

65720206610 is a wasteful number, since it uses less digits than its factorization.

65720206610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015217.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 65720206610 in words is "sixty-five billion, seven hundred twenty million, two hundred six thousand, six hundred ten".