20400333033 has 8 divisors (see below), whose sum is σ = 27779177088. Its totient is φ = 13310855504.

The previous prime is 20400333001. The next prime is 20400333067. The reversal of 20400333033 is 33033300402.

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 20400333033 - 2⁵ = 20400333001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20400331033) 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, 72341466 + ... + 72341747.

It is an arithmetic number, because the mean of its divisors is an integer number (3472397136).

Almost surely, 2^20400333033 is an apocalyptic number.

It is an amenable number.

20400333033 is a deficient number, since it is larger than the sum of its proper divisors (7378844055).

20400333033 is a wasteful number, since it uses less digits than its factorization.

20400333033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144683263.

The product of its (nonzero) digits is 1944, while the sum is 21.

Adding to 20400333033 its reverse (33033300402), we get a palindrome (53433633435).

The spelling of 20400333033 in words is "twenty billion, four hundred million, three hundred thirty-three thousand, thirty-three".