165556144053046 has 16 divisors (see below), whose sum is σ = 249443206771824. Its totient is φ = 82408452344064.

The previous prime is 165556144052963. The next prime is 165556144053049. The reversal of 165556144053046 is 640350441655561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165556144053049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3410595 + ... + 18513358.

It is an arithmetic number, because the mean of its divisors is an integer number (15590200423239).

Almost surely, 2^{165556144053046} is an apocalyptic number.

165556144053046 is a deficient number, since it is larger than the sum of its proper divisors (83887062718778).

165556144053046 is a wasteful number, since it uses less digits than its factorization.

165556144053046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21940815.

The product of its (nonzero) digits is 25920000, while the sum is 55.

The spelling of 165556144053046 in words is "one hundred sixty-five trillion, five hundred fifty-six billion, one hundred forty-four million, fifty-three thousand, forty-six".