16401077 has 16 divisors (see below), whose sum is σ = 21110784. Its totient is φ = 12366000.

The previous prime is 16401061. The next prime is 16401083. The reversal of 16401077 is 77010461.

It is a cyclic number.

It is not a de Polignac number, because 16401077 - 2⁴ = 16401061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16401097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049 + ... + 5822.

It is an arithmetic number, because the mean of its divisors is an integer number (1319424).

Almost surely, 2^16401077 is an apocalyptic number.

It is an amenable number.

16401077 is a deficient number, since it is larger than the sum of its proper divisors (4709707).

16401077 is a wasteful number, since it uses less digits than its factorization.

16401077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6920.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 16401077 is about 4049.8243171772. The cubic root of 16401077 is about 254.0723800174.

The spelling of 16401077 in words is "sixteen million, four hundred one thousand, seventy-seven".