1565166160 has 40 divisors (see below), whose sum is σ = 3700700640. Its totient is φ = 615453312.

The previous prime is 1565166151. The next prime is 1565166167. The reversal of 1565166160 is 616615651.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1565166167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161082 + ... + 170521.

It is an arithmetic number, because the mean of its divisors is an integer number (92517516).

Almost surely, 2^1565166160 is an apocalyptic number.

1565166160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1565166160 is an abundant number, since it is smaller than the sum of its proper divisors (2135534480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1565166160 is a wasteful number, since it uses less digits than its factorization.

1565166160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331675 (or 331669 counting only the distinct ones).

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

The square root of 1565166160 is about 39562.1809307829. The cubic root of 1565166160 is about 1161.0568450092.

The spelling of 1565166160 in words is "one billion, five hundred sixty-five million, one hundred sixty-six thousand, one hundred sixty".