20083734694145 has 4 divisors (see below), whose sum is σ = 24100481632980. Its totient is φ = 16066987755312.

The previous prime is 20083734694073. The next prime is 20083734694151. The reversal of 20083734694145 is 54149643738002.

It is a happy number.

It is a Cunningham number, because it is equal to 4481488²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7230140187664 + 12853594506481 = 2688892^2 + 3585191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20083734694145 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008373469410 + ... + 2008373469419.

It is an arithmetic number, because the mean of its divisors is an integer number (6025120408245).

It is a 1-persistent number, because it is pandigital, but 2⋅20083734694145 = 40167469388290 is not.

Almost surely, 2^{20083734694145} is an apocalyptic number.

It is an amenable number.

20083734694145 is a deficient number, since it is larger than the sum of its proper divisors (4016746938835).

20083734694145 is an equidigital number, since it uses as much as digits as its factorization.

20083734694145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016746938834.

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 20083734694145 in words is "twenty trillion, eighty-three billion, seven hundred thirty-four million, six hundred ninety-four thousand, one hundred forty-five".