656654151 has 4 divisors (see below), whose sum is σ = 875538872. Its totient is φ = 437769432.

The previous prime is 656654147. The next prime is 656654179. The reversal of 656654151 is 151456656.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 656654151 - 2² = 656654147 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 (656654101) 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, 109442356 + ... + 109442361.

It is an arithmetic number, because the mean of its divisors is an integer number (218884718).

Almost surely, 2^656654151 is an apocalyptic number.

656654151 is a deficient number, since it is larger than the sum of its proper divisors (218884721).

656654151 is a wasteful number, since it uses less digits than its factorization.

656654151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218884720.

The product of its digits is 108000, while the sum is 39.

The square root of 656654151 is about 25625.2639205921. The cubic root of 656654151 is about 869.1850169490.

The spelling of 656654151 in words is "six hundred fifty-six million, six hundred fifty-four thousand, one hundred fifty-one".