6694156056877 has 4 divisors (see below), whose sum is σ = 6694200789856. Its totient is φ = 6694111323900.

The previous prime is 6694156056871. The next prime is 6694156056899. The reversal of 6694156056877 is 7786506514966.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6694156056877 - 2³ = 6694156056869 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 (6694156056871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22141263 + ... + 22441564.

It is an arithmetic number, because the mean of its divisors is an integer number (1673550197464).

Almost surely, 2^{6694156056877} is an apocalyptic number.

It is an amenable number.

6694156056877 is a deficient number, since it is larger than the sum of its proper divisors (44732979).

6694156056877 is a wasteful number, since it uses less digits than its factorization.

6694156056877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44732978.

The product of its (nonzero) digits is 457228800, while the sum is 70.

The spelling of 6694156056877 in words is "six trillion, six hundred ninety-four billion, one hundred fifty-six million, fifty-six thousand, eight hundred seventy-seven".