16661476 has 24 divisors (see below), whose sum is σ = 32768064. Its totient is φ = 7355040.

The previous prime is 16661471. The next prime is 16661483. The reversal of 16661476 is 67416661.

It is not an unprimeable number, because it can be changed into a prime (16661471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5770 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (1365336).

Almost surely, 2^16661476 is an apocalyptic number.

It is an amenable number.

16661476 is a deficient number, since it is larger than the sum of its proper divisors (16106588).

16661476 is a wasteful number, since it uses less digits than its factorization.

16661476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13971 (or 13969 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 16661476 is about 4081.8471308955. The cubic root of 16661476 is about 255.4099569990.

The spelling of 16661476 in words is "sixteen million, six hundred sixty-one thousand, four hundred seventy-six".