16550256620 has 12 divisors (see below), whose sum is σ = 34755538944. Its totient is φ = 6620102640.

The previous prime is 16550256617. The next prime is 16550256631. The reversal of 16550256620 is 2665205561.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413756396 + ... + 413756435.

It is an arithmetic number, because the mean of its divisors is an integer number (2896294912).

Almost surely, 2^16550256620 is an apocalyptic number.

16550256620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16550256620 is an abundant number, since it is smaller than the sum of its proper divisors (18205282324).

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

16550256620 is a wasteful number, since it uses less digits than its factorization.

16550256620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827512840 (or 827512838 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 16550256620 in words is "sixteen billion, five hundred fifty million, two hundred fifty-six thousand, six hundred twenty".