20034346672666 has 16 divisors (see below), whose sum is σ = 30390329779200. Its totient is φ = 9904245281568.

The previous prime is 20034346672663. The next prime is 20034346672679. The reversal of 20034346672666 is 66627664343002.

It is not an unprimeable number, because it can be changed into a prime (20034346672663) 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, 2603431 + ... + 6844453.

It is an arithmetic number, because the mean of its divisors is an integer number (1899395611200).

Almost surely, 2^{20034346672666} is an apocalyptic number.

20034346672666 is a deficient number, since it is larger than the sum of its proper divisors (10355983106534).

20034346672666 is a wasteful number, since it uses less digits than its factorization.

20034346672666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267653.

The product of its (nonzero) digits is 31352832, while the sum is 55.

The spelling of 20034346672666 in words is "twenty trillion, thirty-four billion, three hundred forty-six million, six hundred seventy-two thousand, six hundred sixty-six".