23455132520000 has 140 divisors (see below), whose sum is σ = 58214232966780. Its totient is φ = 9373483008000.

The previous prime is 23455132519991. The next prime is 23455132520129. The reversal of 23455132520000 is 2523155432.

It can be written as a sum of positive squares in 10 ways, for example, as 15796364087296 + 7658768432704 = 3974464^2 + 2767448^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43612736 + ... + 44147264.

Almost surely, 2^{23455132520000} is an apocalyptic number.

23455132520000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23455132520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29107116483390).

23455132520000 is an abundant number, since it is smaller than the sum of its proper divisors (34759100446780).

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

23455132520000 is an equidigital number, since it uses as much as digits as its factorization.

23455132520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535658 (or 535633 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 23455132520000 its reverse (2523155432), we get a palindrome (23457655675432).

The spelling of 23455132520000 in words is "twenty-three trillion, four hundred fifty-five billion, one hundred thirty-two million, five hundred twenty thousand".