16406061 has 16 divisors (see below), whose sum is σ = 26087424. Its totient is φ = 8967024.

The previous prime is 16406057. The next prime is 16406081. The reversal of 16406061 is 16060461.

It is not a de Polignac number, because 16406061 - 2² = 16406057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16406051) 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, 16501 + ... + 17466.

It is an arithmetic number, because the mean of its divisors is an integer number (1630464).

Almost surely, 2^16406061 is an apocalyptic number.

It is an amenable number.

16406061 is a deficient number, since it is larger than the sum of its proper divisors (9681363).

16406061 is a wasteful number, since it uses less digits than its factorization.

16406061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34000.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 16406061 is about 4050.4396057712. The cubic root of 16406061 is about 254.0981134595.

The spelling of 16406061 in words is "sixteen million, four hundred six thousand, sixty-one".