16661950 has 24 divisors (see below), whose sum is σ = 32062680. Its totient is φ = 6434400.

The previous prime is 16661927. The next prime is 16661971. The reversal of 16661950 is 5916661.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4296 + ... + 7195.

It is an arithmetic number, because the mean of its divisors is an integer number (1335945).

Almost surely, 2^16661950 is an apocalyptic number.

16661950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16661950 is a deficient number, since it is larger than the sum of its proper divisors (15400730).

16661950 is a wasteful number, since it uses less digits than its factorization.

16661950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11532 (or 11527 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 16661950 is about 4081.9051924316. The cubic root of 16661950 is about 255.4123790167.

The spelling of 16661950 in words is "sixteen million, six hundred sixty-one thousand, nine hundred fifty".