66022387200 has 1200 divisors, whose sum is σ = 305017156224. Its totient is φ = 13702348800.

The previous prime is 66022387181. The next prime is 66022387201. The reversal of 66022387200 is 278322066.

66022387200 is a `hidden beast` number, since 6 + 602 + 23 + 8 + 7 + 20 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a super-2 number, since 2×66022387200² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66022387201) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 79833187 + ... + 79834013.

Almost surely, 2^66022387200 is an apocalyptic number.

66022387200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66022387200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152508578112).

66022387200 is an abundant number, since it is smaller than the sum of its proper divisors (238994769024).

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

66022387200 is a wasteful number, since it uses less digits than its factorization.

66022387200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 66022387200 in words is "sixty-six billion, twenty-two million, three hundred eighty-seven thousand, two hundred".