16946217650 has 12 divisors (see below), whose sum is σ = 31519964922. Its totient is φ = 6778487040.

The previous prime is 16946217647. The next prime is 16946217689. The reversal of 16946217650 is 5671264961.

It can be written as a sum of positive squares in 3 ways, for example, as 6843756529 + 10102461121 = 82727^2 + 100511^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16946217595 and 16946217604.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169462127 + ... + 169462226.

Almost surely, 2^16946217650 is an apocalyptic number.

16946217650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16946217650 is a deficient number, since it is larger than the sum of its proper divisors (14573747272).

16946217650 is a wasteful number, since it uses less digits than its factorization.

16946217650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338924365 (or 338924360 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 16946217650 in words is "sixteen billion, nine hundred forty-six million, two hundred seventeen thousand, six hundred fifty".