20346066220 has 96 divisors (see below), whose sum is σ = 44230536000. Its totient is φ = 7858274304.

The previous prime is 20346066217. The next prime is 20346066263. The reversal of 20346066220 is 2266064302.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 17053944 + ... + 17055136.

It is an arithmetic number, because the mean of its divisors is an integer number (460734750).

Almost surely, 2^20346066220 is an apocalyptic number.

20346066220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20346066220 is an abundant number, since it is smaller than the sum of its proper divisors (23884469780).

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

20346066220 is a wasteful number, since it uses less digits than its factorization.

20346066220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 20346066220 in words is "twenty billion, three hundred forty-six million, sixty-six thousand, two hundred twenty".