511117672556 has 6 divisors (see below), whose sum is σ = 894455926980. Its totient is φ = 255558836276.

The previous prime is 511117672529. The next prime is 511117672591. The reversal of 511117672556 is 655276711115.

It is a super-2 number, since 2×511117672556² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 511117672556.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63889709066 + ... + 63889709073.

It is an arithmetic number, because the mean of its divisors is an integer number (149075987830).

Almost surely, 2^511117672556 is an apocalyptic number.

It is an amenable number.

511117672556 is a deficient number, since it is larger than the sum of its proper divisors (383338254424).

511117672556 is a wasteful number, since it uses less digits than its factorization.

511117672556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127779418143 (or 127779418141 counting only the distinct ones).

The product of its digits is 441000, while the sum is 47.

The spelling of 511117672556 in words is "five hundred eleven billion, one hundred seventeen million, six hundred seventy-two thousand, five hundred fifty-six".