20325749185 has 32 divisors (see below), whose sum is σ = 29669732352. Its totient is φ = 13049041920.

The previous prime is 20325749179. The next prime is 20325749209. The reversal of 20325749185 is 58194752302.

It is not a de Polignac number, because 20325749185 - 2¹¹ = 20325747137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24219 + ... + 203071.

It is an arithmetic number, because the mean of its divisors is an integer number (927179136).

Almost surely, 2^20325749185 is an apocalyptic number.

It is an amenable number.

20325749185 is a deficient number, since it is larger than the sum of its proper divisors (9343983167).

20325749185 is a wasteful number, since it uses less digits than its factorization.

20325749185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179073.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 20325749185 in words is "twenty billion, three hundred twenty-five million, seven hundred forty-nine thousand, one hundred eighty-five".