512135201555 has 4 divisors (see below), whose sum is σ = 614562241872. Its totient is φ = 409708161240.

The previous prime is 512135201537. The next prime is 512135201561. The reversal of 512135201555 is 555102531215.

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

It is not a de Polignac number, because 512135201555 - 2¹⁸ = 512134939411 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, 51213520151 + ... + 51213520160.

It is an arithmetic number, because the mean of its divisors is an integer number (153640560468).

Almost surely, 2^512135201555 is an apocalyptic number.

512135201555 is a deficient number, since it is larger than the sum of its proper divisors (102427040317).

512135201555 is a wasteful number, since it uses less digits than its factorization.

512135201555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102427040316.

The product of its (nonzero) digits is 37500, while the sum is 35.

The spelling of 512135201555 in words is "five hundred twelve billion, one hundred thirty-five million, two hundred one thousand, five hundred fifty-five".