33020243663820 has 192 divisors, whose sum is σ = 108193346666496. Its totient is φ = 7368936503040.

The previous prime is 33020243663783. The next prime is 33020243663833. The reversal of 33020243663820 is 2836634202033.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2303874 + ... + 8446793.

It is an arithmetic number, because the mean of its divisors is an integer number (563507013888).

Almost surely, 2^{33020243663820} is an apocalyptic number.

33020243663820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33020243663820 is an abundant number, since it is smaller than the sum of its proper divisors (75173103002676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33020243663820 is a wasteful number, since it uses less digits than its factorization.

33020243663820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10750860 (or 10750858 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 42.

Adding to 33020243663820 its reverse (2836634202033), we get a palindrome (35856877865853).

The spelling of 33020243663820 in words is "thirty-three trillion, twenty billion, two hundred forty-three million, six hundred sixty-three thousand, eight hundred twenty".