20354734700745 has 64 divisors (see below), whose sum is σ = 35230629749760. Its totient is φ = 10000160467200.

The previous prime is 20354734700737. The next prime is 20354734700767. The reversal of 20354734700745 is 54700743745302.

It is not a de Polignac number, because 20354734700745 - 2³ = 20354734700737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15951850 + ... + 17180540.

It is an arithmetic number, because the mean of its divisors is an integer number (550478589840).

Almost surely, 2^{20354734700745} is an apocalyptic number.

It is an amenable number.

20354734700745 is a deficient number, since it is larger than the sum of its proper divisors (14875895049015).

20354734700745 is a wasteful number, since it uses less digits than its factorization.

20354734700745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230326.

The product of its (nonzero) digits is 9878400, while the sum is 51.

The spelling of 20354734700745 in words is "twenty trillion, three hundred fifty-four billion, seven hundred thirty-four million, seven hundred thousand, seven hundred forty-five".