23120556691456 has 117 divisors (see below), whose sum is σ = 53789128234401. Its totient is φ = 9907886800896.

The previous prime is 23120556691373. The next prime is 23120556691457. The reversal of 23120556691456 is 65419665502132.

The square root of 23120556691456 is 4808384.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1860932505600 + 21259624185856 = 1364160^2 + 4610816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23120556691397 and 23120556691406.

It is not an unprimeable number, because it can be changed into a prime (23120556691457) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2154150666 + ... + 2154161398.

Almost surely, 2^{23120556691456} is an apocalyptic number.

23120556691456 is the 4808384-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23120556691456

23120556691456 is an abundant number, since it is smaller than the sum of its proper divisors (30668571542945).

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

23120556691456 is an frugal number, since it uses more digits than its factorization.

23120556691456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21504 (or 10742 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 55.

The spelling of 23120556691456 in words is "twenty-three trillion, one hundred twenty billion, five hundred fifty-six million, six hundred ninety-one thousand, four hundred fifty-six".