512117612655 has 32 divisors (see below), whose sum is σ = 894085274880. Its totient is φ = 248241876480.

The previous prime is 512117612581. The next prime is 512117612681. The reversal of 512117612655 is 556216711215.

It is a happy number.

It is not a de Polignac number, because 512117612655 - 2¹² = 512117608559 is a prime.

It is a super-2 number, since 2×512117612655² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358279 + ... + 1073591.

It is an arithmetic number, because the mean of its divisors is an integer number (27940164840).

Almost surely, 2^512117612655 is an apocalyptic number.

512117612655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

512117612655 is a deficient number, since it is larger than the sum of its proper divisors (381967662225).

512117612655 is a wasteful number, since it uses less digits than its factorization.

512117612655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719671.

The product of its digits is 126000, while the sum is 42.

The spelling of 512117612655 in words is "five hundred twelve billion, one hundred seventeen million, six hundred twelve thousand, six hundred fifty-five".