20005458892705 has 32 divisors (see below), whose sum is σ = 28204313493888. Its totient is φ = 13429850803200.

The previous prime is 20005458892669. The next prime is 20005458892717. The reversal of 20005458892705 is 50729885450002.

It is not a de Polignac number, because 20005458892705 - 2¹⁵ = 20005458859937 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25574185 + ... + 26344825.

It is an arithmetic number, because the mean of its divisors is an integer number (881384796684).

Almost surely, 2^{20005458892705} is an apocalyptic number.

It is an amenable number.

20005458892705 is a deficient number, since it is larger than the sum of its proper divisors (8198854601183).

20005458892705 is a wasteful number, since it uses less digits than its factorization.

20005458892705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806977.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 20005458892705 in words is "twenty trillion, five billion, four hundred fifty-eight million, eight hundred ninety-two thousand, seven hundred five".