33613450664 has 8 divisors (see below), whose sum is σ = 63025220010. Its totient is φ = 16806725328.

The previous prime is 33613450657. The next prime is 33613450681. The reversal of 33613450664 is 46605431633.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28812346564 + 4801104100 = 169742^2 + 69290^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×33613450664² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 2100840659 + ... + 2100840674.

Almost surely, 2^33613450664 is an apocalyptic number.

It is an amenable number.

33613450664 is a deficient number, since it is larger than the sum of its proper divisors (29411769346).

33613450664 is a wasteful number, since it uses less digits than its factorization.

33613450664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201681339 (or 4201681335 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 33613450664 in words is "thirty-three billion, six hundred thirteen million, four hundred fifty thousand, six hundred sixty-four".