6617213331772 has 6 divisors (see below), whose sum is σ = 11580123330608. Its totient is φ = 3308606665884.

The previous prime is 6617213331733. The next prime is 6617213331779. The reversal of 6617213331772 is 2771333127166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617213331779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827151666468 + ... + 827151666475.

Almost surely, 2^{6617213331772} is an apocalyptic number.

It is an amenable number.

6617213331772 is a deficient number, since it is larger than the sum of its proper divisors (4962909998836).

6617213331772 is a wasteful number, since it uses less digits than its factorization.

6617213331772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654303332947 (or 1654303332945 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 49.

The spelling of 6617213331772 in words is "six trillion, six hundred seventeen billion, two hundred thirteen million, three hundred thirty-one thousand, seven hundred seventy-two".