23455666540 has 24 divisors (see below), whose sum is σ = 49583110752. Its totient is φ = 9320131200.

The previous prime is 23455666517. The next prime is 23455666541. The reversal of 23455666540 is 4566655432.

It is not an unprimeable number, because it can be changed into a prime (23455666541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3880369 + ... + 3886408.

It is an arithmetic number, because the mean of its divisors is an integer number (2065962948).

Almost surely, 2^23455666540 is an apocalyptic number.

23455666540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23455666540 is an abundant number, since it is smaller than the sum of its proper divisors (26127444212).

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

23455666540 is a wasteful number, since it uses less digits than its factorization.

23455666540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7766937 (or 7766935 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 23455666540 in words is "twenty-three billion, four hundred fifty-five million, six hundred sixty-six thousand, five hundred forty".