64622066442 has 64 divisors (see below), whose sum is σ = 140541174144. Its totient is φ = 19728783360.

The previous prime is 64622066441. The next prime is 64622066447. The reversal of 64622066442 is 24466022646.

It is a super-2 number, since 2×64622066442² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64622066394 and 64622066403.

It is not an unprimeable number, because it can be changed into a prime (64622066441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1640793 + ... + 1679715.

It is an arithmetic number, because the mean of its divisors is an integer number (2195955846).

Almost surely, 2^64622066442 is an apocalyptic number.

64622066442 is an abundant number, since it is smaller than the sum of its proper divisors (75919107702).

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

64622066442 is a wasteful number, since it uses less digits than its factorization.

64622066442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39383.

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 64622066442 in words is "sixty-four billion, six hundred twenty-two million, sixty-six thousand, four hundred forty-two".