23558668840 has 48 divisors (see below), whose sum is σ = 61661214900. Its totient is φ = 8077257216.

The previous prime is 23558668769. The next prime is 23558668853. The reversal of 23558668840 is 4886685532.

It can be written as a sum of positive squares in 2 ways, for example, as 18873813924 + 4684854916 = 137382^2 + 68446^2 .

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, 6007905 + ... + 6011824.

Almost surely, 2^23558668840 is an apocalyptic number.

23558668840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23558668840 is an abundant number, since it is smaller than the sum of its proper divisors (38102546060).

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

23558668840 is a wasteful number, since it uses less digits than its factorization.

23558668840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019754 (or 12019743 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 23558668840 in words is "twenty-three billion, five hundred fifty-eight million, six hundred sixty-eight thousand, eight hundred forty".