656690146 has 8 divisors (see below), whose sum is σ = 1125754560. Its totient is φ = 281438628.

The previous prime is 656690117. The next prime is 656690159. The reversal of 656690146 is 641096656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23453206 + ... + 23453233.

It is an arithmetic number, because the mean of its divisors is an integer number (140719320).

Almost surely, 2^656690146 is an apocalyptic number.

656690146 is a deficient number, since it is larger than the sum of its proper divisors (469064414).

656690146 is a wasteful number, since it uses less digits than its factorization.

656690146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46906448.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 656690146 is about 25625.9662451975. The cubic root of 656690146 is about 869.2008983396.

The spelling of 656690146 in words is "six hundred fifty-six million, six hundred ninety thousand, one hundred forty-six".