16165236436 has 24 divisors (see below), whose sum is σ = 28813155840. Its totient is φ = 7933461600.

The previous prime is 16165236431. The next prime is 16165236469. The reversal of 16165236436 is 63463256161.

It is a super-2 number, since 2×16165236436² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16165236392 and 16165236401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165236431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47721 + ... + 186031.

It is an arithmetic number, because the mean of its divisors is an integer number (1200548160).

Almost surely, 2^16165236436 is an apocalyptic number.

It is an amenable number.

16165236436 is a deficient number, since it is larger than the sum of its proper divisors (12647919404).

16165236436 is a wasteful number, since it uses less digits than its factorization.

16165236436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138855 (or 138853 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The spelling of 16165236436 in words is "sixteen billion, one hundred sixty-five million, two hundred thirty-six thousand, four hundred thirty-six".