656679151 has 4 divisors (see below), whose sum is σ = 664591032. Its totient is φ = 648767272.

The previous prime is 656679137. The next prime is 656679167. The reversal of 656679151 is 151976656.

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

It is a cyclic number.

It is not a de Polignac number, because 656679151 - 2¹¹ = 656677103 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 (656670151) 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, 3955816 + ... + 3955981.

It is an arithmetic number, because the mean of its divisors is an integer number (166147758).

Almost surely, 2^656679151 is an apocalyptic number.

656679151 is a deficient number, since it is larger than the sum of its proper divisors (7911881).

656679151 is an equidigital number, since it uses as much as digits as its factorization.

656679151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911880.

The product of its digits is 340200, while the sum is 46.

The square root of 656679151 is about 25625.7517158034. The cubic root of 656679151 is about 869.1960472860.

The spelling of 656679151 in words is "six hundred fifty-six million, six hundred seventy-nine thousand, one hundred fifty-one".