20357277745 has 8 divisors (see below), whose sum is σ = 27918552384. Its totient is φ = 13959276144.

The previous prime is 20357277701. The next prime is 20357277761. The reversal of 20357277745 is 54777275302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20357277745 - 2³³ = 11767343153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290818219 + ... + 290818288.

It is an arithmetic number, because the mean of its divisors is an integer number (3489819048).

Almost surely, 2^20357277745 is an apocalyptic number.

It is an amenable number.

20357277745 is a deficient number, since it is larger than the sum of its proper divisors (7561274639).

20357277745 is an equidigital number, since it uses as much as digits as its factorization.

20357277745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581636519.

The product of its (nonzero) digits is 2881200, while the sum is 49.

The spelling of 20357277745 in words is "twenty billion, three hundred fifty-seven million, two hundred seventy-seven thousand, seven hundred forty-five".