671214136262555 has 16 divisors (see below), whose sum is σ = 816357978922464. Its totient is φ = 529745612075520.

The previous prime is 671214136262473. The next prime is 671214136262563. The reversal of 671214136262555 is 555262631412176.

It is a de Polignac number, because none of the positive numbers 2^k-671214136262555 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671214136262555.

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, 2602787792 + ... + 2603045661.

It is an arithmetic number, because the mean of its divisors is an integer number (51022373682654).

Almost surely, 2^{671214136262555} is an apocalyptic number.

671214136262555 is a deficient number, since it is larger than the sum of its proper divisors (145143842659909).

671214136262555 is a wasteful number, since it uses less digits than its factorization.

671214136262555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205833806.

The product of its digits is 18144000, while the sum is 56.

The spelling of 671214136262555 in words is "six hundred seventy-one trillion, two hundred fourteen billion, one hundred thirty-six million, two hundred sixty-two thousand, five hundred fifty-five".