71634955456 has 14 divisors (see below), whose sum is σ = 142150614860. Its totient is φ = 35817477696.

The previous prime is 71634955369. The next prime is 71634955481. The reversal of 71634955456 is 65455943617.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71634955397 and 71634955406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559648026 + ... + 559648153.

Almost surely, 2^71634955456 is an apocalyptic number.

It is an amenable number.

71634955456 is a deficient number, since it is larger than the sum of its proper divisors (70515659404).

71634955456 is a wasteful number, since it uses less digits than its factorization.

71634955456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119296191 (or 1119296181 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 55.

The spelling of 71634955456 in words is "seventy-one billion, six hundred thirty-four million, nine hundred fifty-five thousand, four hundred fifty-six".