33668553628 has 12 divisors (see below), whose sum is σ = 58934399832. Its totient is φ = 16830153680.

The previous prime is 33668553623. The next prime is 33668553673. The reversal of 33668553628 is 82635586633.

It is a super-2 number, since 2×33668553628² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33668553623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012375 + ... + 1045102.

It is an arithmetic number, because the mean of its divisors is an integer number (4911199986).

Almost surely, 2^33668553628 is an apocalyptic number.

It is an amenable number.

33668553628 is a deficient number, since it is larger than the sum of its proper divisors (25265846204).

33668553628 is a wasteful number, since it uses less digits than its factorization.

33668553628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061572 (or 2061570 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 55.

The spelling of 33668553628 in words is "thirty-three billion, six hundred sixty-eight million, five hundred fifty-three thousand, six hundred twenty-eight".