671602078102 has 4 divisors (see below), whose sum is σ = 1007403117156. Its totient is φ = 335801039050.

The previous prime is 671602078093. The next prime is 671602078109. The reversal of 671602078102 is 201870206176.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671602078109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167900519524 + ... + 167900519527.

It is an arithmetic number, because the mean of its divisors is an integer number (251850779289).

Almost surely, 2^671602078102 is an apocalyptic number.

671602078102 is a deficient number, since it is larger than the sum of its proper divisors (335801039054).

671602078102 is a wasteful number, since it uses less digits than its factorization.

671602078102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335801039053.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 671602078102 in words is "six hundred seventy-one billion, six hundred two million, seventy-eight thousand, one hundred two".