16221702050 has 24 divisors (see below), whose sum is σ = 30741660756. Its totient is φ = 6366251840.

The previous prime is 16221701987. The next prime is 16221702053. The reversal of 16221702050 is 5020712261.

It can be written as a sum of positive squares in 6 ways, for example, as 9064372849 + 7157329201 = 95207^2 + 84601^2 .

It is not an unprimeable number, because it can be changed into a prime (16221702053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3058049 + ... + 3063348.

Almost surely, 2^16221702050 is an apocalyptic number.

16221702050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16221702050 is a deficient number, since it is larger than the sum of its proper divisors (14519958706).

16221702050 is a wasteful number, since it uses less digits than its factorization.

16221702050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121462 (or 6121457 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 16221702050 in words is "sixteen billion, two hundred twenty-one million, seven hundred two thousand, fifty".