71006256630 has 24 divisors (see below), whose sum is σ = 184616267472. Its totient is φ = 18935001744.

The previous prime is 71006256613. The next prime is 71006256653. The reversal of 71006256630 is 3665260017.

71006256630 is a `hidden beast` number, since 7 + 1 + 0 + 0 + 62 + 566 + 30 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394479114 + ... + 394479293.

It is an arithmetic number, because the mean of its divisors is an integer number (7692344478).

Almost surely, 2^71006256630 is an apocalyptic number.

71006256630 is an abundant number, since it is smaller than the sum of its proper divisors (113610010842).

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

71006256630 is a wasteful number, since it uses less digits than its factorization.

71006256630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788958420 (or 788958417 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 71006256630 in words is "seventy-one billion, six million, two hundred fifty-six thousand, six hundred thirty".