33318164021 has 8 divisors (see below), whose sum is σ = 34778368320. Its totient is φ = 31858925472.

The previous prime is 33318163999. The next prime is 33318164023. The reversal of 33318164021 is 12046181333.

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-33318164021 is a prime.

It is a super-2 number, since 2×33318164021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33318164023) 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, 170480 + ... + 309353.

It is an arithmetic number, because the mean of its divisors is an integer number (4347296040).

Almost surely, 2^33318164021 is an apocalyptic number.

It is an amenable number.

33318164021 is a deficient number, since it is larger than the sum of its proper divisors (1460204299).

33318164021 is a wasteful number, since it uses less digits than its factorization.

33318164021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482875.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 33318164021 in words is "thirty-three billion, three hundred eighteen million, one hundred sixty-four thousand, twenty-one".