33103000640 has 28 divisors (see below), whose sum is σ = 78826521036. Its totient is φ = 13241200128.

The previous prime is 33103000621. The next prime is 33103000657. The reversal of 33103000640 is 4600030133.

It can be written as a sum of positive squares in 2 ways, for example, as 16655451136 + 16447549504 = 129056^2 + 128248^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51723119 + ... + 51723758.

Almost surely, 2^33103000640 is an apocalyptic number.

It is an amenable number.

33103000640 is an abundant number, since it is smaller than the sum of its proper divisors (45723520396).

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

33103000640 is a wasteful number, since it uses less digits than its factorization.

33103000640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103446894 (or 103446884 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33103000640 its reverse (4600030133), we get a palindrome (37703030773).

The spelling of 33103000640 in words is "thirty-three billion, one hundred three million, six hundred forty", and thus it is an aban number.