656556150 has 48 divisors (see below), whose sum is σ = 1724045904. Its totient is φ = 164782080.

The previous prime is 656556107. The next prime is 656556151. The reversal of 656556150 is 51655656.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 656556099 and 656556108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656556151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126187 + ... + 131286.

It is an arithmetic number, because the mean of its divisors is an integer number (35917623).

Almost surely, 2^656556150 is an apocalyptic number.

656556150 is an abundant number, since it is smaller than the sum of its proper divisors (1067489754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656556150 is a wasteful number, since it uses less digits than its factorization.

656556150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257505 (or 257500 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 656556150 is about 25623.3516543016. The cubic root of 656556150 is about 869.1417748869.

The spelling of 656556150 in words is "six hundred fifty-six million, five hundred fifty-six thousand, one hundred fifty".