313521665542 has 8 divisors (see below), whose sum is σ = 470559303000. Its totient is φ = 156668564544.

The previous prime is 313521665539. The next prime is 313521665557. The reversal of 313521665542 is 245566125313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46129867 + ... + 46136662.

It is an arithmetic number, because the mean of its divisors is an integer number (58819912875).

Almost surely, 2^313521665542 is an apocalyptic number.

313521665542 is a deficient number, since it is larger than the sum of its proper divisors (157037637458).

313521665542 is a wasteful number, since it uses less digits than its factorization.

313521665542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92268230.

The product of its digits is 648000, while the sum is 43.

The spelling of 313521665542 in words is "three hundred thirteen billion, five hundred twenty-one million, six hundred sixty-five thousand, five hundred forty-two".