23152152132440 has 64 divisors (see below), whose sum is σ = 54852321852000. Its totient is φ = 8770522752000.

The previous prime is 23152152132409. The next prime is 23152152132451. The reversal of 23152152132440 is 4423125125132.

It is a self number, because there is not a number n which added to its sum of digits gives 23152152132440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2794775 + ... + 7356294.

Almost surely, 2^{23152152132440} is an apocalyptic number.

23152152132440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23152152132440 is an abundant number, since it is smaller than the sum of its proper divisors (31700169719560).

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

23152152132440 is a wasteful number, since it uses less digits than its factorization.

23152152132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10154100 (or 10154096 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 23152152132440 its reverse (4423125125132), we get a palindrome (27575277257572).

The spelling of 23152152132440 in words is "twenty-three trillion, one hundred fifty-two billion, one hundred fifty-two million, one hundred thirty-two thousand, four hundred forty".