16890550550 has 12 divisors (see below), whose sum is σ = 31416424116. Its totient is φ = 6756220200.

The previous prime is 16890550541. The next prime is 16890550559. The reversal of 16890550550 is 5505509861.

It is an interprime number because it is at equal distance from previous prime (16890550541) and next prime (16890550559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890550559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168905456 + ... + 168905555.

It is an arithmetic number, because the mean of its divisors is an integer number (2618035343).

Almost surely, 2^16890550550 is an apocalyptic number.

16890550550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16890550550 is a deficient number, since it is larger than the sum of its proper divisors (14525873566).

16890550550 is a wasteful number, since it uses less digits than its factorization.

16890550550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337811023 (or 337811018 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 44.

The spelling of 16890550550 in words is "sixteen billion, eight hundred ninety million, five hundred fifty thousand, five hundred fifty".