16171662105 has 24 divisors (see below), whose sum is σ = 28219019400. Its totient is φ = 8566997760.

The previous prime is 16171662077. The next prime is 16171662121. The reversal of 16171662105 is 50126617161.

It is a happy number.

16171662105 is a `hidden beast` number, since 1 + 6 + 17 + 16 + 621 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 685601856 + 15486060249 = 26184^2 + 124443^2 .

It is not a de Polignac number, because 16171662105 - 2¹⁰ = 16171661081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16171662105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1199236 + ... + 1212645.

It is an arithmetic number, because the mean of its divisors is an integer number (1175792475).

Almost surely, 2^16171662105 is an apocalyptic number.

16171662105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16171662105 is a deficient number, since it is larger than the sum of its proper divisors (12047357295).

16171662105 is a wasteful number, since it uses less digits than its factorization.

16171662105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412041 (or 2412038 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 16171662105 in words is "sixteen billion, one hundred seventy-one million, six hundred sixty-two thousand, one hundred five".