667614771707051 has 8 divisors (see below), whose sum is σ = 803145590023680. Its totient is φ = 542123273265768.

The previous prime is 667614771707041. The next prime is 667614771707099. The reversal of 667614771707051 is 150707177416766.

It is a happy number.

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 667614771707051 - 2²² = 667614767512747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667614771707011) 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, 2509829968691 + ... + 2509829968956.

It is an arithmetic number, because the mean of its divisors is an integer number (100393198752960).

Almost surely, 2^{667614771707051} is an apocalyptic number.

667614771707051 is a deficient number, since it is larger than the sum of its proper divisors (135530818316629).

667614771707051 is a wasteful number, since it uses less digits than its factorization.

667614771707051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019659937673.

The product of its (nonzero) digits is 72606240, while the sum is 65.

The spelling of 667614771707051 in words is "six hundred sixty-seven trillion, six hundred fourteen billion, seven hundred seventy-one million, seven hundred seven thousand, fifty-one".