33663115420 has 96 divisors (see below), whose sum is σ = 81894032640. Its totient is φ = 11487421440.

The previous prime is 33663115397. The next prime is 33663115459. The reversal of 33663115420 is 2451136633.

It is a super-2 number, since 2×33663115420² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1284811 + ... + 1310749.

It is an arithmetic number, because the mean of its divisors is an integer number (853062840).

Almost surely, 2^33663115420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33663115420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40947016320).

33663115420 is an abundant number, since it is smaller than the sum of its proper divisors (48230917220).

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

33663115420 is a wasteful number, since it uses less digits than its factorization.

33663115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26323 (or 26321 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 33663115420 in words is "thirty-three billion, six hundred sixty-three million, one hundred fifteen thousand, four hundred twenty".