64420620222 has 32 divisors (see below), whose sum is σ = 147261261312. Its totient is φ = 18404125344.

The previous prime is 64420620211. The next prime is 64420620241. The reversal of 64420620222 is 22202602446.

It is a self number, because there is not a number n which added to its sum of digits gives 64420620222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406108 + ... + 542000.

It is an arithmetic number, because the mean of its divisors is an integer number (4601914416).

Almost surely, 2^64420620222 is an apocalyptic number.

64420620222 is an abundant number, since it is smaller than the sum of its proper divisors (82840641090).

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

64420620222 is a wasteful number, since it uses less digits than its factorization.

64420620222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147192.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 64420620222 in words is "sixty-four billion, four hundred twenty million, six hundred twenty thousand, two hundred twenty-two".