165565747565562 has 32 divisors (see below), whose sum is σ = 336564120392640. Its totient is φ = 54283167774720.

The previous prime is 165565747565539. The next prime is 165565747565671. The reversal of 165565747565562 is 265565747565561.

165565747565562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 26658489 + ... + 32277027.

It is an arithmetic number, because the mean of its divisors is an integer number (10517628762270).

Almost surely, 2^{165565747565562} is an apocalyptic number.

165565747565562 is an abundant number, since it is smaller than the sum of its proper divisors (170998372827078).

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

165565747565562 is a wasteful number, since it uses less digits than its factorization.

165565747565562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699118.

The product of its digits is 7938000000, while the sum is 75.

Subtracting 165565747565562 from its reverse (265565747565561), we obtain a palindrome (99999999999999).

The spelling of 165565747565562 in words is "one hundred sixty-five trillion, five hundred sixty-five billion, seven hundred forty-seven million, five hundred sixty-five thousand, five hundred sixty-two".