16165654047 has 6 divisors (see below), whose sum is σ = 23350389192. Its totient is φ = 10777102692.

The previous prime is 16165654039. The next prime is 16165654061. The reversal of 16165654047 is 74045656161.

16165654047 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 565 + 40 + 47 = 666.

It is not a de Polignac number, because 16165654047 - 2³ = 16165654039 is a prime.

It is a super-2 number, since 2×16165654047² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16165653993 and 16165654011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165654147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 898091883 + ... + 898091900.

It is an arithmetic number, because the mean of its divisors is an integer number (3891731532).

Almost surely, 2^16165654047 is an apocalyptic number.

16165654047 is a deficient number, since it is larger than the sum of its proper divisors (7184735145).

16165654047 is a wasteful number, since it uses less digits than its factorization.

16165654047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796183789 (or 1796183786 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 16165654047 in words is "sixteen billion, one hundred sixty-five million, six hundred fifty-four thousand, forty-seven".