33990168961 has 8 divisors (see below), whose sum is σ = 39246381440. Its totient is φ = 28834075008.

The previous prime is 33990168893. The next prime is 33990168977. The reversal of 33990168961 is 16986109933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33990168961 - 2¹⁷ = 33990037889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33990168991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25028901 + ... + 25030258.

It is an arithmetic number, because the mean of its divisors is an integer number (4905797680).

Almost surely, 2^33990168961 is an apocalyptic number.

It is an amenable number.

33990168961 is a deficient number, since it is larger than the sum of its proper divisors (5256212479).

33990168961 is an equidigital number, since it uses as much as digits as its factorization.

33990168961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50059263.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The spelling of 33990168961 in words is "thirty-three billion, nine hundred ninety million, one hundred sixty-eight thousand, nine hundred sixty-one".