66022181100 has 108 divisors (see below), whose sum is σ = 211990364040. Its totient is φ = 17176492800.

The previous prime is 66022181089. The next prime is 66022181107. The reversal of 66022181100 is 118122066.

It is not an unprimeable number, because it can be changed into a prime (66022181107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 857710 + ... + 931509.

Almost surely, 2^66022181100 is an apocalyptic number.

66022181100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66022181100 is an abundant number, since it is smaller than the sum of its proper divisors (145968182940).

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

66022181100 is a wasteful number, since it uses less digits than its factorization.

66022181100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789280 (or 1789270 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

It can be divided in two parts, 660221 and 81100, that added together give a square (741321 = 861²).

The spelling of 66022181100 in words is "sixty-six billion, twenty-two million, one hundred eighty-one thousand, one hundred".