16065165402 has 192 divisors, whose sum is σ = 43629788160. Its totient is φ = 4348080000.

The previous prime is 16065165349. The next prime is 16065165421. The reversal of 16065165402 is 20456156061.

16065165402 is a `hidden beast` number, since 1 + 60 + 6 + 51 + 6 + 540 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2630152 + ... + 2636252.

It is an arithmetic number, because the mean of its divisors is an integer number (227238480).

Almost surely, 2^16065165402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16065165402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21814894080).

16065165402 is an abundant number, since it is smaller than the sum of its proper divisors (27564622758).

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

16065165402 is a wasteful number, since it uses less digits than its factorization.

16065165402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178 (or 6161 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 16065165402 in words is "sixteen billion, sixty-five million, one hundred sixty-five thousand, four hundred two".