6888866157 has 64 divisors (see below), whose sum is σ = 11404800000. Its totient is φ = 4084141824.

The previous prime is 6888866147. The next prime is 6888866167. The reversal of 6888866157 is 7516688886.

6888866157 is a `hidden beast` number, since 6 + 8 + 8 + 8 + 8 + 6 + 615 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (6888866147) and next prime (6888866167).

It is not a de Polignac number, because 6888866157 - 2⁷ = 6888866029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6888866094 and 6888866103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6888866147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4350988 + ... + 4352570.

It is an arithmetic number, because the mean of its divisors is an integer number (178200000).

Almost surely, 2^6888866157 is an apocalyptic number.

It is an amenable number.

6888866157 is a deficient number, since it is larger than the sum of its proper divisors (4515933843).

6888866157 is a wasteful number, since it uses less digits than its factorization.

6888866157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127 (or 2121 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The square root of 6888866157 is about 82999.1937129512. The cubic root of 6888866157 is about 1902.7537315609.

The spelling of 6888866157 in words is "six billion, eight hundred eighty-eight million, eight hundred sixty-six thousand, one hundred fifty-seven".