1565061166 has 8 divisors (see below), whose sum is σ = 2347987320. Its totient is φ = 782398728.

The previous prime is 1565061149. The next prime is 1565061167. The reversal of 1565061166 is 6611605651.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1565061167) 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, 50356 + ... + 75271.

It is an arithmetic number, because the mean of its divisors is an integer number (293498415).

Almost surely, 2^1565061166 is an apocalyptic number.

1565061166 is a deficient number, since it is larger than the sum of its proper divisors (782926154).

1565061166 is a wasteful number, since it uses less digits than its factorization.

1565061166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131858.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1565061166 is about 39560.8539594382. The cubic root of 1565061166 is about 1161.0308825414.

The spelling of 1565061166 in words is "one billion, five hundred sixty-five million, sixty-one thousand, one hundred sixty-six".