671322271522 has 16 divisors (see below), whose sum is σ = 1150889910912. Its totient is φ = 287696612160.

The previous prime is 671322271517. The next prime is 671322271553. The reversal of 671322271522 is 225172223176.

It is a happy number.

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, 751758 + ... + 1381225.

It is an arithmetic number, because the mean of its divisors is an integer number (71930619432).

Almost surely, 2^671322271522 is an apocalyptic number.

671322271522 is a deficient number, since it is larger than the sum of its proper divisors (479567639390).

671322271522 is a wasteful number, since it uses less digits than its factorization.

671322271522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155473.

The product of its digits is 141120, while the sum is 40.

Adding to 671322271522 its reverse (225172223176), we get a palindrome (896494494698).

The spelling of 671322271522 in words is "six hundred seventy-one billion, three hundred twenty-two million, two hundred seventy-one thousand, five hundred twenty-two".