242551646140563 has 24 divisors (see below), whose sum is σ = 350423285496128. Its totient is φ = 161668372556592.

The previous prime is 242551646140549. The next prime is 242551646140603. The reversal of 242551646140563 is 365041646155242.

242551646140563 is a `hidden beast` number, since 2 + 4 + 2 + 5 + 5 + 1 + 64 + 6 + 14 + 0 + 563 = 666.

It is not a de Polignac number, because 242551646140563 - 2⁴ = 242551646140547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242551646148563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2634008520 + ... + 2634100602.

Almost surely, 2^{242551646140563} is an apocalyptic number.

242551646140563 is a deficient number, since it is larger than the sum of its proper divisors (107871639355565).

242551646140563 is a wasteful number, since it uses less digits than its factorization.

242551646140563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148143 (or 148140 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 54.

The spelling of 242551646140563 in words is "two hundred forty-two trillion, five hundred fifty-one billion, six hundred forty-six million, one hundred forty thousand, five hundred sixty-three".