512655101220 has 96 divisors (see below), whose sum is σ = 1444989756672. Its totient is φ = 135800946688.

The previous prime is 512655101197. The next prime is 512655101243. The reversal of 512655101220 is 22101556215.

It is an interprime number because it is at equal distance from previous prime (512655101197) and next prime (512655101243).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5524324 + ... + 5616356.

It is an arithmetic number, because the mean of its divisors is an integer number (15051976632).

Almost surely, 2^512655101220 is an apocalyptic number.

It is an amenable number.

512655101220 is an abundant number, since it is smaller than the sum of its proper divisors (932334655452).

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

512655101220 is a wasteful number, since it uses less digits than its factorization.

512655101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92661 (or 92659 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 512655101220 its reverse (22101556215), we get a palindrome (534756657435).

The spelling of 512655101220 in words is "five hundred twelve billion, six hundred fifty-five million, one hundred one thousand, two hundred twenty".