661160033 has 8 divisors (see below), whose sum is σ = 687402240. Its totient is φ = 635225040.

The previous prime is 661160021. The next prime is 661160053. The reversal of 661160033 is 330061166.

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 661160033 - 2⁶ = 661159969 is a prime.

It is a super-2 number, since 2×661160033² = 874265178473122178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 661159984 and 661160011.

It is not an unprimeable number, because it can be changed into a prime (661160053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72410 + ... + 81027.

It is an arithmetic number, because the mean of its divisors is an integer number (85925280).

Almost surely, 2^661160033 is an apocalyptic number.

It is an amenable number.

661160033 is a deficient number, since it is larger than the sum of its proper divisors (26242207).

661160033 is a wasteful number, since it uses less digits than its factorization.

661160033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153607.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 661160033 is about 25713.0323571531. The cubic root of 661160033 is about 871.1685679816.

The spelling of 661160033 in words is "six hundred sixty-one million, one hundred sixty thousand, thirty-three".