201056656 has 10 divisors (see below), whose sum is σ = 389547302. Its totient is φ = 100528320.

The previous prime is 201056641. The next prime is 201056657. The reversal of 201056656 is 656650102.

It can be written as a sum of positive squares in only one way, i.e., 191545600 + 9511056 = 13840^2 + 3084^2 .

It is not an unprimeable number, because it can be changed into a prime (201056657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6283005 + ... + 6283036.

Almost surely, 2^201056656 is an apocalyptic number.

It is an amenable number.

201056656 is a deficient number, since it is larger than the sum of its proper divisors (188490646).

201056656 is a wasteful number, since it uses less digits than its factorization.

201056656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566049 (or 12566043 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 201056656 is about 14179.4448410366. Note that the first 3 decimals coincide. The cubic root of 201056656 is about 585.8316328378.

The spelling of 201056656 in words is "two hundred one million, fifty-six thousand, six hundred fifty-six".