71520230622 has 32 divisors (see below), whose sum is σ = 146930838912. Its totient is φ = 23191894944.

The previous prime is 71520230609. The next prime is 71520230669. The reversal of 71520230622 is 22603202517.

It is a self number, because there is not a number n which added to its sum of digits gives 71520230622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510033 + ... + 1556675.

It is an arithmetic number, because the mean of its divisors is an integer number (4591588716).

Almost surely, 2^71520230622 is an apocalyptic number.

71520230622 is an abundant number, since it is smaller than the sum of its proper divisors (75410608290).

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

71520230622 is a wasteful number, since it uses less digits than its factorization.

71520230622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53592.

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 71520230622 in words is "seventy-one billion, five hundred twenty million, two hundred thirty thousand, six hundred twenty-two".