64220660202 has 64 divisors (see below), whose sum is σ = 131956231680. Its totient is φ = 20831177664.

The previous prime is 64220660177. The next prime is 64220660209. The reversal of 64220660202 is 20206602246.

It is a self number, because there is not a number n which added to its sum of digits gives 64220660202.

It is not an unprimeable number, because it can be changed into a prime (64220660209) 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, 9534828 + ... + 9541560.

It is an arithmetic number, because the mean of its divisors is an integer number (2061816120).

Almost surely, 2^64220660202 is an apocalyptic number.

64220660202 is an abundant number, since it is smaller than the sum of its proper divisors (67735571478).

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

64220660202 is a wasteful number, since it uses less digits than its factorization.

64220660202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107.

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 64220660202 in words is "sixty-four billion, two hundred twenty million, six hundred sixty thousand, two hundred two".