16642665050 has 48 divisors (see below), whose sum is σ = 33784212672. Its totient is φ = 6049238400.

The previous prime is 16642665047. The next prime is 16642665073. The reversal of 16642665050 is 5056624661.

It is a junction number, because it is equal to n+sod(n) for n = 16642664989 and 16642665007.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1619027 + ... + 1629273.

It is an arithmetic number, because the mean of its divisors is an integer number (703837764).

Almost surely, 2^16642665050 is an apocalyptic number.

16642665050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16642665050 is an abundant number, since it is smaller than the sum of its proper divisors (17141547622).

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

16642665050 is a wasteful number, since it uses less digits than its factorization.

16642665050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13223 (or 13218 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 16642665050 in words is "sixteen billion, six hundred forty-two million, six hundred sixty-five thousand, fifty".