33209752064 has 20 divisors (see below), whose sum is σ = 66354642354. Its totient is φ = 16604875776.

The previous prime is 33209752061. The next prime is 33209752067. The reversal of 33209752064 is 46025790233.

It is an interprime number because it is at equal distance from previous prime (33209752061) and next prime (33209752067).

It can be written as a sum of positive squares in only one way, i.e., 30064785664 + 3144966400 = 173392^2 + 56080^2 .

It is a super-2 number, since 2×33209752064² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33209752061) by changing a digit.

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 as a sum of consecutive naturals, namely, 32430887 + ... + 32431910.

Almost surely, 2^33209752064 is an apocalyptic number.

It is an amenable number.

33209752064 is a deficient number, since it is larger than the sum of its proper divisors (33144890290).

33209752064 is an frugal number, since it uses more digits than its factorization.

33209752064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64862815 (or 64862799 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 33209752064 in words is "thirty-three billion, two hundred nine million, seven hundred fifty-two thousand, sixty-four".