3316747561 has 4 divisors (see below), whose sum is σ = 3317485392. Its totient is φ = 3316009732.

The previous prime is 3316747543. The next prime is 3316747589. The reversal of 3316747561 is 1657476133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3316747561 - 2⁵ = 3316747529 is a prime.

It is a super-2 number, since 2×3316747561² = 22001628766798897442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3316747541) 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, 362131 + ... + 371176.

It is an arithmetic number, because the mean of its divisors is an integer number (829371348).

Almost surely, 2^3316747561 is an apocalyptic number.

It is an amenable number.

3316747561 is a deficient number, since it is larger than the sum of its proper divisors (737831).

3316747561 is an equidigital number, since it uses as much as digits as its factorization.

3316747561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737830.

The product of its digits is 317520, while the sum is 43.

The square root of 3316747561 is about 57591.2107964401. The cubic root of 3316747561 is about 1491.3198762268.

The spelling of 3316747561 in words is "three billion, three hundred sixteen million, seven hundred forty-seven thousand, five hundred sixty-one".