20346663651433 has 4 divisors (see below), whose sum is σ = 23253329887360. Its totient is φ = 17439997415508.

The previous prime is 20346663651407. The next prime is 20346663651533. The reversal of 20346663651433 is 33415636664302.

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 20346663651433 - 2²¹ = 20346661554281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20346663651233) 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, 1453333117953 + ... + 1453333117966.

It is an arithmetic number, because the mean of its divisors is an integer number (5813332471840).

Almost surely, 2^{20346663651433} is an apocalyptic number.

It is an amenable number.

20346663651433 is a deficient number, since it is larger than the sum of its proper divisors (2906666235927).

20346663651433 is an equidigital number, since it uses as much as digits as its factorization.

20346663651433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906666235926.

The product of its (nonzero) digits is 16796160, while the sum is 52.

The spelling of 20346663651433 in words is "twenty trillion, three hundred forty-six billion, six hundred sixty-three million, six hundred fifty-one thousand, four hundred thirty-three".