71656220162 has 16 divisors (see below), whose sum is σ = 110374659072. Its totient is φ = 34875313200.

The previous prime is 71656220149. The next prime is 71656220177. The reversal of 71656220162 is 26102265617.

It is a super-2 number, since 2×71656220162² (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 7 ways as a sum of consecutive naturals, for example, 2647964 + ... + 2674887.

It is an arithmetic number, because the mean of its divisors is an integer number (6898416192).

Almost surely, 2^71656220162 is an apocalyptic number.

71656220162 is a deficient number, since it is larger than the sum of its proper divisors (38718438910).

71656220162 is a wasteful number, since it uses less digits than its factorization.

71656220162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323033.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 71656220162 its reverse (26102265617), we get a palindrome (97758485779).

The spelling of 71656220162 in words is "seventy-one billion, six hundred fifty-six million, two hundred twenty thousand, one hundred sixty-two".