16066761 has 16 divisors (see below), whose sum is σ = 22659840. Its totient is φ = 10098000.

The previous prime is 16066753. The next prime is 16066763. The reversal of 16066761 is 16766061.

16066761 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16066761 - 2³ = 16066753 is a prime.

It is a super-2 number, since 2×16066761² = 516281618062242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16066763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13746 + ... + 14868.

It is an arithmetic number, because the mean of its divisors is an integer number (1416240).

Almost surely, 2^16066761 is an apocalyptic number.

It is an amenable number.

16066761 is a deficient number, since it is larger than the sum of its proper divisors (6593079).

16066761 is a wasteful number, since it uses less digits than its factorization.

16066761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 16066761 is about 4008.3364379752. The cubic root of 16066761 is about 252.3341969370.

The spelling of 16066761 in words is "sixteen million, sixty-six thousand, seven hundred sixty-one".