242155506040515 has 32 divisors (see below), whose sum is σ = 455822129021760. Its totient is φ = 121552567736832.

The previous prime is 242155506040477. The next prime is 242155506040541. The reversal of 242155506040515 is 515040605551242.

It is a happy number.

242155506040515 is a `hidden beast` number, since 2 + 4 + 2 + 1 + 5 + 550 + 6 + 0 + 40 + 51 + 5 = 666.

It is not a de Polignac number, because 242155506040515 - 2⁶ = 242155506040451 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52757188564 + ... + 52757193153.

It is an arithmetic number, because the mean of its divisors is an integer number (14244441531930).

Almost surely, 2^{242155506040515} is an apocalyptic number.

242155506040515 is a deficient number, since it is larger than the sum of its proper divisors (213666622981245).

242155506040515 is a wasteful number, since it uses less digits than its factorization.

242155506040515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105514381748 (or 105514381742 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 45.

The spelling of 242155506040515 in words is "two hundred forty-two trillion, one hundred fifty-five billion, five hundred six million, forty thousand, five hundred fifteen".