23066477928 has 96 divisors (see below), whose sum is σ = 67311153000. Its totient is φ = 7093799424.

The previous prime is 23066477911. The next prime is 23066477947. The reversal of 23066477928 is 82977466032.

23066477928 is a `hidden beast` number, since 23 + 0 + 66 + 477 + 92 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14839625124 + 8226852804 = 121818^2 + 90702^2 .

It is a super-2 number, since 2×23066477928² (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 23 ways as a sum of consecutive naturals, for example, 2313498 + ... + 2323446.

Almost surely, 2^23066477928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23066477928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33655576500).

23066477928 is an abundant number, since it is smaller than the sum of its proper divisors (44244675072).

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

23066477928 is a wasteful number, since it uses less digits than its factorization.

23066477928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12451 (or 12444 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 23066477928 in words is "twenty-three billion, sixty-six million, four hundred seventy-seven thousand, nine hundred twenty-eight".