16069776646 has 32 divisors (see below), whose sum is σ = 30071077632. Its totient is φ = 6257096160.

The previous prime is 16069776617. The next prime is 16069776659. The reversal of 16069776646 is 64667796061.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 225420 + ... + 288016.

It is an arithmetic number, because the mean of its divisors is an integer number (939721176).

Almost surely, 2^16069776646 is an apocalyptic number.

16069776646 is a deficient number, since it is larger than the sum of its proper divisors (14001300986).

16069776646 is a wasteful number, since it uses less digits than its factorization.

16069776646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64284.

The product of its (nonzero) digits is 13716864, while the sum is 58.

The spelling of 16069776646 in words is "sixteen billion, sixty-nine million, seven hundred seventy-six thousand, six hundred forty-six".