20361142051456 has 32 divisors (see below), whose sum is σ = 40964828673780. Its totient is φ = 10079773286400.

The previous prime is 20361142051451. The next prime is 20361142051469. The reversal of 20361142051456 is 65415024116302.

It can be written as a sum of positive squares in 2 ways, for example, as 19903376142400 + 457765909056 = 4461320^2 + 676584^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×20361142051456² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20361142051451) 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, 787469361 + ... + 787495216.

Almost surely, 2^{20361142051456} is an apocalyptic number.

It is an amenable number.

20361142051456 is an abundant number, since it is smaller than the sum of its proper divisors (20603686622324).

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

20361142051456 is a wasteful number, since it uses less digits than its factorization.

20361142051456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574964692 (or 1574964680 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 20361142051456 its reverse (65415024116302), we get a palindrome (85776166167758).

The spelling of 20361142051456 in words is "twenty trillion, three hundred sixty-one billion, one hundred forty-two million, fifty-one thousand, four hundred fifty-six".