20302907745 has 8 divisors (see below), whose sum is σ = 32484652416. Its totient is φ = 10828217456.

The previous prime is 20302907731. The next prime is 20302907771. The reversal of 20302907745 is 54770920302.

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 20302907745 - 2²⁰ = 20301859169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676763577 + ... + 676763606.

It is an arithmetic number, because the mean of its divisors is an integer number (4060581552).

Almost surely, 2^20302907745 is an apocalyptic number.

It is an amenable number.

20302907745 is a deficient number, since it is larger than the sum of its proper divisors (12181744671).

20302907745 is a wasteful number, since it uses less digits than its factorization.

20302907745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353527191.

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 20302907745 in words is "twenty billion, three hundred two million, nine hundred seven thousand, seven hundred forty-five".