515143222152 has 64 divisors (see below), whose sum is σ = 1387666116480. Its totient is φ = 158420800512.

The previous prime is 515143222147. The next prime is 515143222171. The reversal of 515143222152 is 251222341515.

It is a super-2 number, since 2×515143222152² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143613 + ... + 1025139.

It is an arithmetic number, because the mean of its divisors is an integer number (21682283070).

Almost surely, 2^515143222152 is an apocalyptic number.

515143222152 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

515143222152 is an abundant number, since it is smaller than the sum of its proper divisors (872522894328).

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

515143222152 is a wasteful number, since it uses less digits than its factorization.

515143222152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883422 (or 883418 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

Adding to 515143222152 its reverse (251222341515), we get a palindrome (766365563667).

The spelling of 515143222152 in words is "five hundred fifteen billion, one hundred forty-three million, two hundred twenty-two thousand, one hundred fifty-two".