3111668157 has 16 divisors (see below), whose sum is σ = 4476947328. Its totient is φ = 1911053760.

The previous prime is 3111668123. The next prime is 3111668179. The reversal of 3111668157 is 7518661113.

It is not a de Polignac number, because 3111668157 - 2⁸ = 3111667901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112668157) 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, 59694 + ... + 98927.

It is an arithmetic number, because the mean of its divisors is an integer number (279809208).

Almost surely, 2^3111668157 is an apocalyptic number.

It is an amenable number.

3111668157 is a deficient number, since it is larger than the sum of its proper divisors (1365279171).

3111668157 is a wasteful number, since it uses less digits than its factorization.

3111668157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159140.

The product of its digits is 30240, while the sum is 39.

The square root of 3111668157 is about 55782.3283576439. The cubic root of 3111668157 is about 1459.9268364225.

The spelling of 3111668157 in words is "three billion, one hundred eleven million, six hundred sixty-eight thousand, one hundred fifty-seven".