16461680 has 40 divisors (see below), whose sum is σ = 38448432. Its totient is φ = 6554624.

The previous prime is 16461677. The next prime is 16461689. The reversal of 16461680 is 8616461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16461689) 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, 27464 + ... + 28056.

Almost surely, 2^16461680 is an apocalyptic number.

16461680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16461680 is an abundant number, since it is smaller than the sum of its proper divisors (21986752).

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

16461680 is a wasteful number, since it uses less digits than its factorization.

16461680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 16461680 is about 4057.2995945579. The cubic root of 16461680 is about 254.3849331161.

The spelling of 16461680 in words is "sixteen million, four hundred sixty-one thousand, six hundred eighty".