71611453164 has 12 divisors (see below), whose sum is σ = 167093390744. Its totient is φ = 23870484384.

The previous prime is 71611453139. The next prime is 71611453171. The reversal of 71611453164 is 46135411617.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×71611453164² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2983810537 + ... + 2983810560.

Almost surely, 2^71611453164 is an apocalyptic number.

It is an amenable number.

71611453164 is an abundant number, since it is smaller than the sum of its proper divisors (95481937580).

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

71611453164 is a wasteful number, since it uses less digits than its factorization.

71611453164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967621104 (or 5967621102 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

It can be divided in two parts, 71611453 and 164, that added together give a palindrome (71611617).

The spelling of 71611453164 in words is "seventy-one billion, six hundred eleven million, four hundred fifty-three thousand, one hundred sixty-four".