64622064022 has 4 divisors (see below), whose sum is σ = 96933096036. Its totient is φ = 32311032010.

The previous prime is 64622064019. The next prime is 64622064037. The reversal of 64622064022 is 22046022646.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×64622064022² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16155516004 + ... + 16155516007.

It is an arithmetic number, because the mean of its divisors is an integer number (24233274009).

Almost surely, 2^64622064022 is an apocalyptic number.

64622064022 is a deficient number, since it is larger than the sum of its proper divisors (32311032014).

64622064022 is a wasteful number, since it uses less digits than its factorization.

64622064022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32311032013.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 64622064022 its reverse (22046022646), we get a palindrome (86668086668).

The spelling of 64622064022 in words is "sixty-four billion, six hundred twenty-two million, sixty-four thousand, twenty-two".