20185337004 has 192 divisors, whose sum is σ = 58076282880. Its totient is φ = 5332250880.

The previous prime is 20185336999. The next prime is 20185337009. The reversal of 20185337004 is 40073358102.

It is an interprime number because it is at equal distance from previous prime (20185336999) and next prime (20185337009).

It is not an unprimeable number, because it can be changed into a prime (20185337009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6951817 + ... + 6954719.

It is an arithmetic number, because the mean of its divisors is an integer number (302480640).

Almost surely, 2^20185337004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20185337004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29038141440).

20185337004 is an abundant number, since it is smaller than the sum of its proper divisors (37890945876).

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

20185337004 is a wasteful number, since it uses less digits than its factorization.

20185337004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060 (or 3058 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 20185337004 in words is "twenty billion, one hundred eighty-five million, three hundred thirty-seven thousand, four".