313521665461 has 8 divisors (see below), whose sum is σ = 316477515744. Its totient is φ = 310566292080.

The previous prime is 313521665417. The next prime is 313521665497. The reversal of 313521665461 is 164566125313.

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

It is a cyclic number.

It is not a de Polignac number, because 313521665461 - 2²⁵ = 313488111029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313521665161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278651 + ... + 1503991.

It is an arithmetic number, because the mean of its divisors is an integer number (39559689468).

Almost surely, 2^313521665461 is an apocalyptic number.

It is an amenable number.

313521665461 is a deficient number, since it is larger than the sum of its proper divisors (2955850283).

313521665461 is a wasteful number, since it uses less digits than its factorization.

313521665461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238451.

The product of its digits is 388800, while the sum is 43.

The spelling of 313521665461 in words is "three hundred thirteen billion, five hundred twenty-one million, six hundred sixty-five thousand, four hundred sixty-one".