6764166257 has 16 divisors (see below), whose sum is σ = 7002519552. Its totient is φ = 6530010960.

The previous prime is 6764166247. The next prime is 6764166259. The reversal of 6764166257 is 7526614676.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6764166257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6764166259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3693332 + ... + 3695162.

It is an arithmetic number, because the mean of its divisors is an integer number (437657472).

Almost surely, 2^6764166257 is an apocalyptic number.

It is an amenable number.

6764166257 is a deficient number, since it is larger than the sum of its proper divisors (238353295).

6764166257 is a wasteful number, since it uses less digits than its factorization.

6764166257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908.

The product of its digits is 2540160, while the sum is 50.

The square root of 6764166257 is about 82244.5515338250. The cubic root of 6764166257 is about 1891.2027521594.

The spelling of 6764166257 in words is "six billion, seven hundred sixty-four million, one hundred sixty-six thousand, two hundred fifty-seven".