71133507356 has 12 divisors (see below), whose sum is σ = 128776177320. Its totient is φ = 34340313840.

The previous prime is 71133507329. The next prime is 71133507391. The reversal of 71133507356 is 65370533117.

It is a super-2 number, since 2×71133507356² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 306609830 + ... + 306610061.

It is an arithmetic number, because the mean of its divisors is an integer number (10731348110).

Almost surely, 2^71133507356 is an apocalyptic number.

It is an amenable number.

71133507356 is a deficient number, since it is larger than the sum of its proper divisors (57642669964).

71133507356 is a wasteful number, since it uses less digits than its factorization.

71133507356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613219924 (or 613219922 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 41.

The spelling of 71133507356 in words is "seventy-one billion, one hundred thirty-three million, five hundred seven thousand, three hundred fifty-six".