20295872345 has 8 divisors (see below), whose sum is σ = 27834339264. Its totient is φ = 13917169584.

The previous prime is 20295872279. The next prime is 20295872351. The reversal of 20295872345 is 54327859202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20295872345 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20295872345.

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, 289940999 + ... + 289941068.

It is an arithmetic number, because the mean of its divisors is an integer number (3479292408).

Almost surely, 2^20295872345 is an apocalyptic number.

It is an amenable number.

20295872345 is a deficient number, since it is larger than the sum of its proper divisors (7538466919).

20295872345 is an equidigital number, since it uses as much as digits as its factorization.

20295872345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579882079.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 20295872345 in words is "twenty billion, two hundred ninety-five million, eight hundred seventy-two thousand, three hundred forty-five".