133660428011 has 16 divisors (see below), whose sum is σ = 160158954240. Its totient is φ = 110109273120.

The previous prime is 133660428001. The next prime is 133660428019. The reversal of 133660428011 is 110824066331.

It is not a de Polignac number, because 133660428011 - 2²⁶ = 133593319147 is a prime.

It is a super-2 number, since 2×133660428011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133660428019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13897880 + ... + 13907493.

It is an arithmetic number, because the mean of its divisors is an integer number (10009934640).

Almost surely, 2^133660428011 is an apocalyptic number.

133660428011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133660428011 is a deficient number, since it is larger than the sum of its proper divisors (26498526229).

133660428011 is a wasteful number, since it uses less digits than its factorization.

133660428011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27805426.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 133660428011 in words is "one hundred thirty-three billion, six hundred sixty million, four hundred twenty-eight thousand, eleven".