20042086170 has 64 divisors (see below), whose sum is σ = 49366920960. Its totient is φ = 5204390400.

The previous prime is 20042086159. The next prime is 20042086171. The reversal of 20042086170 is 7168024002.

It is a super-3 number, since 3×20042086170³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20042086171) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 650371 + ... + 680489.

It is an arithmetic number, because the mean of its divisors is an integer number (771358140).

Almost surely, 2^20042086170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20042086170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24683460480).

20042086170 is an abundant number, since it is smaller than the sum of its proper divisors (29324834790).

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

20042086170 is a wasteful number, since it uses less digits than its factorization.

20042086170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30711.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 20042086170 in words is "twenty billion, forty-two million, eighty-six thousand, one hundred seventy".