512245121240155 has 4 divisors (see below), whose sum is σ = 614694145488192. Its totient is φ = 409796096992120.

The previous prime is 512245121240137. The next prime is 512245121240191. The reversal of 512245121240155 is 551042121542215.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 512245121240155 - 2⁵ = 512245121240123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51224512124011 + ... + 51224512124020.

It is an arithmetic number, because the mean of its divisors is an integer number (153673536372048).

Almost surely, 2^{512245121240155} is an apocalyptic number.

512245121240155 is a deficient number, since it is larger than the sum of its proper divisors (102449024248037).

512245121240155 is a wasteful number, since it uses less digits than its factorization.

512245121240155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102449024248036.

The product of its (nonzero) digits is 160000, while the sum is 40.

The spelling of 512245121240155 in words is "five hundred twelve trillion, two hundred forty-five billion, one hundred twenty-one million, two hundred forty thousand, one hundred fifty-five".