133666041660 has 24 divisors (see below), whose sum is σ = 374264916816. Its totient is φ = 35644277760.

The previous prime is 133666041643. The next prime is 133666041709. The reversal of 133666041660 is 66140666331.

It is a super-2 number, since 2×133666041660² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113883621 + ... + 1113883740.

It is an arithmetic number, because the mean of its divisors is an integer number (15594371534).

Almost surely, 2^133666041660 is an apocalyptic number.

133666041660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133666041660 is an abundant number, since it is smaller than the sum of its proper divisors (240598875156).

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

133666041660 is a wasteful number, since it uses less digits than its factorization.

133666041660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227767373 (or 2227767371 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 133666041660 in words is "one hundred thirty-three billion, six hundred sixty-six million, forty-one thousand, six hundred sixty".