220945882005 has 32 divisors (see below), whose sum is σ = 393167376000. Its totient is φ = 117725394816.

The previous prime is 220945881973. The next prime is 220945882009. The reversal of 220945882005 is 500288549022.

It is not a de Polignac number, because 220945882005 - 2⁵ = 220945881973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220945882009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 638479 + ... + 921708.

It is an arithmetic number, because the mean of its divisors is an integer number (12286480500).

Almost surely, 2^220945882005 is an apocalyptic number.

It is an amenable number.

220945882005 is a deficient number, since it is larger than the sum of its proper divisors (172221493995).

220945882005 is a wasteful number, since it uses less digits than its factorization.

220945882005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561250 (or 1561244 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 220945882005 in words is "two hundred twenty billion, nine hundred forty-five million, eight hundred eighty-two thousand, five".