16061166506 has 32 divisors (see below), whose sum is σ = 30273011712. Its totient is φ = 6208317360.

The previous prime is 16061166493. The next prime is 16061166533. The reversal of 16061166506 is 60566116061.

It is a happy number.

It is a super-2 number, since 2×16061166506² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16061166506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391046 + ... + 430161.

It is an arithmetic number, because the mean of its divisors is an integer number (946031616).

Almost surely, 2^16061166506 is an apocalyptic number.

16061166506 is a deficient number, since it is larger than the sum of its proper divisors (14211845206).

16061166506 is a wasteful number, since it uses less digits than its factorization.

16061166506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821354.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 16061166506 in words is "sixteen billion, sixty-one million, one hundred sixty-six thousand, five hundred six".