23151335856 has 80 divisors (see below), whose sum is σ = 66314350848. Its totient is φ = 6900537600.

The previous prime is 23151335843. The next prime is 23151335869. The reversal of 23151335856 is 65853315132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23151335843) and next prime (23151335869).

It is a super-2 number, since 2×23151335856² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327196 + ... + 391611.

Almost surely, 2^23151335856 is an apocalyptic number.

It is an amenable number.

23151335856 is an abundant number, since it is smaller than the sum of its proper divisors (43163014992).

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

23151335856 is a wasteful number, since it uses less digits than its factorization.

23151335856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718890 (or 718884 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The spelling of 23151335856 in words is "twenty-three billion, one hundred fifty-one million, three hundred thirty-five thousand, eight hundred fifty-six".