20164452456345 has 16 divisors (see below), whose sum is σ = 32271941488320. Its totient is φ = 10751435457344.

The previous prime is 20164452456289. The next prime is 20164452456367. The reversal of 20164452456345 is 54365425446102.

It is a cyclic number.

It is not a de Polignac number, because 20164452456345 - 2¹⁴ = 20164452439961 is a prime.

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, 183642414 + ... + 183752183.

It is an arithmetic number, because the mean of its divisors is an integer number (2016996343020).

Almost surely, 2^{20164452456345} is an apocalyptic number.

It is an amenable number.

20164452456345 is a deficient number, since it is larger than the sum of its proper divisors (12107489031975).

20164452456345 is a wasteful number, since it uses less digits than its factorization.

20164452456345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367398264.

The product of its (nonzero) digits is 13824000, while the sum is 51.

The spelling of 20164452456345 in words is "twenty trillion, one hundred sixty-four billion, four hundred fifty-two million, four hundred fifty-six thousand, three hundred forty-five".