23066661400 has 48 divisors (see below), whose sum is σ = 53643051000. Its totient is φ = 9224417280.

The previous prime is 23066661353. The next prime is 23066661413. The reversal of 23066661400 is 416666032.

It is a super-4 number, since 4×23066661400⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 987051 + ... + 1010149.

Almost surely, 2^23066661400 is an apocalyptic number.

23066661400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23066661400 is an abundant number, since it is smaller than the sum of its proper divisors (30576389600).

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

23066661400 is a wasteful number, since it uses less digits than its factorization.

23066661400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28108 (or 28099 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 23066661400 in words is "twenty-three billion, sixty-six million, six hundred sixty-one thousand, four hundred".