165410391166 has 16 divisors (see below), whose sum is σ = 250013944224. Its totient is φ = 82072831744.

The previous prime is 165410391131. The next prime is 165410391173. The reversal of 165410391166 is 661193014561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691446 + ... + 899398.

It is an arithmetic number, because the mean of its divisors is an integer number (15625871514).

Almost surely, 2^165410391166 is an apocalyptic number.

165410391166 is a deficient number, since it is larger than the sum of its proper divisors (84603553058).

165410391166 is a wasteful number, since it uses less digits than its factorization.

165410391166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210995.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 165410391166 in words is "one hundred sixty-five billion, four hundred ten million, three hundred ninety-one thousand, one hundred sixty-six".