20299142252544 has 48 divisors (see below), whose sum is σ = 54117830435760. Its totient is φ = 6766380748800.

The previous prime is 20299142252533. The next prime is 20299142252549. The reversal of 20299142252544 is 44525224199202.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20299142252549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651942282 + ... + 1651954569.

It is an arithmetic number, because the mean of its divisors is an integer number (1127454800745).

Almost surely, 2^{20299142252544} is an apocalyptic number.

20299142252544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20299142252544 is an abundant number, since it is smaller than the sum of its proper divisors (33818688183216).

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

20299142252544 is an equidigital number, since it uses as much as digits as its factorization.

20299142252544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303896876 (or 3303896856 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 20299142252544 in words is "twenty trillion, two hundred ninety-nine billion, one hundred forty-two million, two hundred fifty-two thousand, five hundred forty-four".