20372661133 has 8 divisors (see below), whose sum is σ = 22288773600. Its totient is φ = 18467224080.

The previous prime is 20372661121. The next prime is 20372661191. The reversal of 20372661133 is 33116627302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20372661133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372661193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2664858 + ... + 2672491.

It is an arithmetic number, because the mean of its divisors is an integer number (2786096700).

Almost surely, 2^20372661133 is an apocalyptic number.

It is an amenable number.

20372661133 is a deficient number, since it is larger than the sum of its proper divisors (1916112467).

20372661133 is a wasteful number, since it uses less digits than its factorization.

20372661133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337707.

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 20372661133 in words is "twenty billion, three hundred seventy-two million, six hundred sixty-one thousand, one hundred thirty-three".