334645917943681 has 4 divisors (see below), whose sum is σ = 337280925171712. Its totient is φ = 332010910715652.

The previous prime is 334645917943637. The next prime is 334645917943741. The reversal of 334645917943681 is 186349719546433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 334645917943681 - 2¹¹ = 334645917941633 is a prime.

It is a super-2 number, since 2×334645917943681² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (334645917973681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317503613825 + ... + 1317503614078.

It is an arithmetic number, because the mean of its divisors is an integer number (84320231292928).

Almost surely, 2^{334645917943681} is an apocalyptic number.

It is an amenable number.

334645917943681 is a deficient number, since it is larger than the sum of its proper divisors (2635007228031).

334645917943681 is a wasteful number, since it uses less digits than its factorization.

334645917943681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635007228030.

The product of its digits is 1410877440, while the sum is 73.

The spelling of 334645917943681 in words is "three hundred thirty-four trillion, six hundred forty-five billion, nine hundred seventeen million, nine hundred forty-three thousand, six hundred eighty-one".