20343664326605 has 8 divisors (see below), whose sum is σ = 25473805765632. Its totient is φ = 15567325745488.

The previous prime is 20343664326589. The next prime is 20343664326617. The reversal of 20343664326605 is 50662346634302.

It is a happy number.

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 20343664326605 - 2⁴ = 20343664326589 is a prime.

It is a super-2 number, since 2×20343664326605² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88450714349 + ... + 88450714578.

It is an arithmetic number, because the mean of its divisors is an integer number (3184225720704).

Almost surely, 2^{20343664326605} is an apocalyptic number.

It is an amenable number.

20343664326605 is a deficient number, since it is larger than the sum of its proper divisors (5130141439027).

20343664326605 is a wasteful number, since it uses less digits than its factorization.

20343664326605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176901428955.

The product of its (nonzero) digits is 11197440, while the sum is 50.

The spelling of 20343664326605 in words is "twenty trillion, three hundred forty-three billion, six hundred sixty-four million, three hundred twenty-six thousand, six hundred five".