33906801601 has 4 divisors (see below), whose sum is σ = 34733796804. Its totient is φ = 33079806400.

The previous prime is 33906801587. The next prime is 33906801613. The reversal of 33906801601 is 10610860933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10610860933 = 39551 ⋅268283.

It can be written as a sum of positive squares in 2 ways, for example, as 2710764225 + 31196037376 = 52065^2 + 176624^2 .

It is a cyclic number.

It is not a de Polignac number, because 33906801601 - 2⁷ = 33906801473 is a prime.

It is a super-2 number, since 2×33906801601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33906801661) 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 in 3 ways as a sum of consecutive naturals, for example, 413497540 + ... + 413497621.

It is an arithmetic number, because the mean of its divisors is an integer number (8683449201).

Almost surely, 2^33906801601 is an apocalyptic number.

It is an amenable number.

33906801601 is a deficient number, since it is larger than the sum of its proper divisors (826995203).

33906801601 is an equidigital number, since it uses as much as digits as its factorization.

33906801601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826995202.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 33906801601 in words is "thirty-three billion, nine hundred six million, eight hundred one thousand, six hundred one".