33640065324 has 72 divisors (see below), whose sum is σ = 90610386048. Its totient is φ = 10486494720.

The previous prime is 33640065299. The next prime is 33640065331. The reversal of 33640065324 is 42356004633.

33640065324 is a `hidden beast` number, since 3 + 3 + 640 + 0 + 6 + 5 + 3 + 2 + 4 = 666.

It is a super-2 number, since 2×33640065324² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78972 + ... + 271139.

It is an arithmetic number, because the mean of its divisors is an integer number (1258477584).

Almost surely, 2^33640065324 is an apocalyptic number.

33640065324 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

33640065324 is an abundant number, since it is smaller than the sum of its proper divisors (56970320724).

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

33640065324 is a wasteful number, since it uses less digits than its factorization.

33640065324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350295 (or 350290 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 33640065324 its reverse (42356004633), we get a palindrome (75996069957).

The spelling of 33640065324 in words is "thirty-three billion, six hundred forty million, sixty-five thousand, three hundred twenty-four".