20349082170 has 32 divisors (see below), whose sum is σ = 54264219840. Its totient is φ = 5426421840.

The previous prime is 20349082153. The next prime is 20349082183. The reversal of 20349082170 is 7128094302.

20349082170 is a `hidden beast` number, since 20 + 3 + 490 + 82 + 1 + 70 = 666.

It is a super-2 number, since 2×20349082170² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37683216 + ... + 37683755.

It is an arithmetic number, because the mean of its divisors is an integer number (1695756870).

Almost surely, 2^20349082170 is an apocalyptic number.

20349082170 is an abundant number, since it is smaller than the sum of its proper divisors (33915137670).

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

20349082170 is a wasteful number, since it uses less digits than its factorization.

20349082170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75366987 (or 75366981 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20349082170 in words is "twenty billion, three hundred forty-nine million, eighty-two thousand, one hundred seventy".