20395232670 has 16 divisors (see below), whose sum is σ = 48948558480. Its totient is φ = 5438728704.

The previous prime is 20395232653. The next prime is 20395232699. The reversal of 20395232670 is 7623259302.

It is a Curzon number.

It is a congruent number.

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, 339920515 + ... + 339920574.

It is an arithmetic number, because the mean of its divisors is an integer number (3059284905).

Almost surely, 2^20395232670 is an apocalyptic number.

20395232670 is an abundant number, since it is smaller than the sum of its proper divisors (28553325810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20395232670 is a wasteful number, since it uses less digits than its factorization.

20395232670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679841099.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 20395232670 in words is "twenty billion, three hundred ninety-five million, two hundred thirty-two thousand, six hundred seventy".