66022639373 has 8 divisors (see below), whose sum is σ = 72316887480. Its totient is φ = 59996231680.

The previous prime is 66022639369. The next prime is 66022639387. The reversal of 66022639373 is 37393622066.

It can be written as a sum of positive squares in 4 ways, for example, as 41861978404 + 24160660969 = 204602^2 + 155437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66022639373 - 2² = 66022639369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66022639313) 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 7 ways as a sum of consecutive naturals, for example, 66959588 + ... + 66960573.

It is an arithmetic number, because the mean of its divisors is an integer number (9039610935).

Almost surely, 2^66022639373 is an apocalyptic number.

It is an amenable number.

66022639373 is a deficient number, since it is larger than the sum of its proper divisors (6294248107).

66022639373 is a wasteful number, since it uses less digits than its factorization.

66022639373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133920207.

The product of its (nonzero) digits is 1469664, while the sum is 47.

The spelling of 66022639373 in words is "sixty-six billion, twenty-two million, six hundred thirty-nine thousand, three hundred seventy-three".