23001057656 has 32 divisors (see below), whose sum is σ = 43787735040. Its totient is φ = 11324462688.

The previous prime is 23001057649. The next prime is 23001057661. The reversal of 23001057656 is 65675010032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1688585 + ... + 1702151.

It is an arithmetic number, because the mean of its divisors is an integer number (1368366720).

Almost surely, 2^23001057656 is an apocalyptic number.

It is an amenable number.

23001057656 is a deficient number, since it is larger than the sum of its proper divisors (20786677384).

23001057656 is a wasteful number, since it uses less digits than its factorization.

23001057656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16803 (or 16799 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

Adding to 23001057656 its reverse (65675010032), we get a palindrome (88676067688).

The spelling of 23001057656 in words is "twenty-three billion, one million, fifty-seven thousand, six hundred fifty-six".