16551046550 has 12 divisors (see below), whose sum is σ = 30784946676. Its totient is φ = 6620418600.

The previous prime is 16551046549. The next prime is 16551046621. The reversal of 16551046550 is 5564015561.

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 5 ways as a sum of consecutive naturals, for example, 165510416 + ... + 165510515.

It is an arithmetic number, because the mean of its divisors is an integer number (2565412223).

Almost surely, 2^16551046550 is an apocalyptic number.

16551046550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16551046550 is a deficient number, since it is larger than the sum of its proper divisors (14233900126).

16551046550 is a wasteful number, since it uses less digits than its factorization.

16551046550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331020943 (or 331020938 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 16551046550 in words is "sixteen billion, five hundred fifty-one million, forty-six thousand, five hundred fifty".