20230591138560 has 2304 divisors, whose sum is σ = 82616488980480. Its totient is φ = 4644864000000.

The previous prime is 20230591138547. The next prime is 20230591138567. The reversal of 20230591138560 is 6583119503202.

20230591138560 is a `hidden beast` number, since 2 + 0 + 2 + 3 + 0 + 59 + 1 + 1 + 38 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (20230591138567) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 111771221670 + ... + 111771221850.

It is an arithmetic number, because the mean of its divisors is an integer number (35857851120).

Almost surely, 2^{20230591138560} is an apocalyptic number.

20230591138560 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 20230591138560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41308244490240).

20230591138560 is an abundant number, since it is smaller than the sum of its proper divisors (62385897841920).

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

20230591138560 is a wasteful number, since it uses less digits than its factorization.

20230591138560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 20230591138560 in words is "twenty trillion, two hundred thirty billion, five hundred ninety-one million, one hundred thirty-eight thousand, five hundred sixty".