20664753033 has 8 divisors (see below), whose sum is σ = 27554484096. Its totient is φ = 13775762000.

The previous prime is 20664753017. The next prime is 20664753037. The reversal of 20664753033 is 33035746602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20664753033 - 2⁴ = 20664753017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20664752982 and 20664753000.

It is not an unprimeable number, because it can be changed into a prime (20664753037) 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, 116193 + ... + 234158.

It is an arithmetic number, because the mean of its divisors is an integer number (3444310512).

Almost surely, 2^20664753033 is an apocalyptic number.

It is an amenable number.

20664753033 is a deficient number, since it is larger than the sum of its proper divisors (6889731063).

20664753033 is a wasteful number, since it uses less digits than its factorization.

20664753033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370015.

The product of its (nonzero) digits is 272160, while the sum is 39.

The spelling of 20664753033 in words is "twenty billion, six hundred sixty-four million, seven hundred fifty-three thousand, thirty-three".