66133311636 has 24 divisors (see below), whose sum is σ = 176355497920. Its totient is φ = 18895231872.

The previous prime is 66133311611. The next prime is 66133311689. The reversal of 66133311636 is 63611333166.

It is a super-2 number, since 2×66133311636² (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 66133311594 and 66133311603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393650581 + ... + 393650748.

Almost surely, 2^66133311636 is an apocalyptic number.

It is an amenable number.

66133311636 is an abundant number, since it is smaller than the sum of its proper divisors (110222186284).

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

66133311636 is a wasteful number, since it uses less digits than its factorization.

66133311636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787301343 (or 787301341 counting only the distinct ones).

The product of its digits is 104976, while the sum is 39.

The spelling of 66133311636 in words is "sixty-six billion, one hundred thirty-three million, three hundred eleven thousand, six hundred thirty-six".