220362161640 has 32 divisors (see below), whose sum is σ = 661086485280. Its totient is φ = 58763243072.

The previous prime is 220362161623. The next prime is 220362161731. The reversal of 220362161640 is 46161263022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918175554 + ... + 918175793.

It is an arithmetic number, because the mean of its divisors is an integer number (20658952665).

Almost surely, 2^220362161640 is an apocalyptic number.

220362161640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220362161640 is an abundant number, since it is smaller than the sum of its proper divisors (440724323640).

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

220362161640 is a wasteful number, since it uses less digits than its factorization.

220362161640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836351361 (or 1836351357 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 220362161640 in words is "two hundred twenty billion, three hundred sixty-two million, one hundred sixty-one thousand, six hundred forty".