23055307640 has 32 divisors (see below), whose sum is σ = 54129854880. Its totient is φ = 8821160832.

The previous prime is 23055307637. The next prime is 23055307687. The reversal of 23055307640 is 4670355032.

It is a self number, because there is not a number n which added to its sum of digits gives 23055307640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12529139 + ... + 12530978.

It is an arithmetic number, because the mean of its divisors is an integer number (1691557965).

Almost surely, 2^23055307640 is an apocalyptic number.

23055307640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23055307640 is an abundant number, since it is smaller than the sum of its proper divisors (31074547240).

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

23055307640 is a wasteful number, since it uses less digits than its factorization.

23055307640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25060151 (or 25060147 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 35.

The spelling of 23055307640 in words is "twenty-three billion, fifty-five million, three hundred seven thousand, six hundred forty".