65707770646701 has 40 divisors (see below), whose sum is σ = 99884597665248. Its totient is φ = 43040385180000.

The previous prime is 65707770646669. The next prime is 65707770646711. The reversal of 65707770646701 is 10764607770756.

It is not a de Polignac number, because 65707770646701 - 2⁵ = 65707770646669 is a prime.

It is a super-2 number, since 2×65707770646701² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65707770646711) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29583835 + ... + 31727256.

Almost surely, 2^{65707770646701} is an apocalyptic number.

It is an amenable number.

65707770646701 is a deficient number, since it is larger than the sum of its proper divisors (34176827018547).

65707770646701 is a wasteful number, since it uses less digits than its factorization.

65707770646701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61311335 (or 61311326 counting only the distinct ones).

The product of its (nonzero) digits is 72606240, while the sum is 63.

The spelling of 65707770646701 in words is "sixty-five trillion, seven hundred seven billion, seven hundred seventy million, six hundred forty-six thousand, seven hundred one".