20643344334602 has 32 divisors (see below), whose sum is σ = 33903284184000. Its totient is φ = 9349103747200.

The previous prime is 20643344334593. The next prime is 20643344334619.

20643344334602 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20643344334602² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71251349 + ... + 71540487.

It is an arithmetic number, because the mean of its divisors is an integer number (1059477630750).

Almost surely, 2^{20643344334602} is an apocalyptic number.

20643344334602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20643344334602 is a deficient number, since it is larger than the sum of its proper divisors (13259939849398).

20643344334602 is a wasteful number, since it uses less digits than its factorization.

20643344334602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300982.

The product of its (nonzero) digits is 2985984, while the sum is 44.

It can be divided in two parts, 2064334 and 4334602, that added together give a palindrome (6398936).

The spelling of 20643344334602 in words is "twenty trillion, six hundred forty-three billion, three hundred forty-four million, three hundred thirty-four thousand, six hundred two".