23920081145856 has 585 divisors, whose sum is σ = 83191112953641. Its totient is φ = 6828674678784.

The previous prime is 23920081145809. The next prime is 23920081145927. The reversal of 23920081145856 is 65854118002932.

The square root of 23920081145856 is 4890816.

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

23920081145856 is a `hidden beast` number, since 2 + 39 + 20 + 0 + 8 + 1 + 1 + 4 + 585 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 975827865600 + 22944253280256 = 987840^2 + 4790016^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 19719769506 + ... + 19719770718.

Almost surely, 2^{23920081145856} is an apocalyptic number.

23920081145856 is the 4890816-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23920081145856

23920081145856 is an abundant number, since it is smaller than the sum of its proper divisors (59271031807785).

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

23920081145856 is an frugal number, since it uses more digits than its factorization.

23920081145856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 23920081145856 in words is "twenty-three trillion, nine hundred twenty billion, eighty-one million, one hundred forty-five thousand, eight hundred fifty-six".