64642422226224 has 80 divisors (see below), whose sum is σ = 177468495575040. Its totient is φ = 20205141672960.

The previous prime is 64642422226199. The next prime is 64642422226289. The reversal of 64642422226224 is 42262222424646.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

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, 145938744 + ... + 146381015.

It is an arithmetic number, because the mean of its divisors is an integer number (2218356194688).

Almost surely, 2^{64642422226224} is an apocalyptic number.

It is an amenable number.

64642422226224 is an abundant number, since it is smaller than the sum of its proper divisors (112826073348816).

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

64642422226224 is a wasteful number, since it uses less digits than its factorization.

64642422226224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292320058 (or 292320052 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 48.

The spelling of 64642422226224 in words is "sixty-four trillion, six hundred forty-two billion, four hundred twenty-two million, two hundred twenty-six thousand, two hundred twenty-four".