5561201165 has 16 divisors (see below), whose sum is σ = 7499253888. Its totient is φ = 3928178496.

The previous prime is 5561201147. The next prime is 5561201171. The reversal of 5561201165 is 5611021655.

It is a cyclic number.

It is not a de Polignac number, because 5561201165 - 2¹² = 5561197069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1858439 + ... + 1861428.

It is an arithmetic number, because the mean of its divisors is an integer number (468703368).

Almost surely, 2^5561201165 is an apocalyptic number.

It is an amenable number.

5561201165 is a deficient number, since it is larger than the sum of its proper divisors (1938052723).

5561201165 is a wasteful number, since it uses less digits than its factorization.

5561201165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719908.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 5561201165 is about 74573.4615329073. The cubic root of 5561201165 is about 1771.6973477243.

The spelling of 5561201165 in words is "five billion, five hundred sixty-one million, two hundred one thousand, one hundred sixty-five".