1668349172602 has 96 divisors (see below), whose sum is σ = 2952572829696. Its totient is φ = 704915215200.

The previous prime is 1668349172593. The next prime is 1668349172653. The reversal of 1668349172602 is 2062719438661.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1534819303 + ... + 1534820389.

It is an arithmetic number, because the mean of its divisors is an integer number (30755966976).

Almost surely, 2^{1668349172602} is an apocalyptic number.

1668349172602 is a deficient number, since it is larger than the sum of its proper divisors (1284223657094).

1668349172602 is a wasteful number, since it uses less digits than its factorization.

1668349172602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 1668349172602 in words is "one trillion, six hundred sixty-eight billion, three hundred forty-nine million, one hundred seventy-two thousand, six hundred two".