216106770677 has 24 divisors (see below), whose sum is σ = 262490304960. Its totient is φ = 174252948480.

The previous prime is 216106770641. The next prime is 216106770683. The reversal of 216106770677 is 776077601612.

It is a happy number.

It is not a de Polignac number, because 216106770677 - 2²⁶ = 216039661813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216106770877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4285949 + ... + 4336077.

It is an arithmetic number, because the mean of its divisors is an integer number (10937096040).

Almost surely, 2^216106770677 is an apocalyptic number.

It is an amenable number.

216106770677 is a deficient number, since it is larger than the sum of its proper divisors (46383534283).

216106770677 is a wasteful number, since it uses less digits than its factorization.

216106770677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52301 (or 52284 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 50.

The spelling of 216106770677 in words is "two hundred sixteen billion, one hundred six million, seven hundred seventy thousand, six hundred seventy-seven".