16261061 has 8 divisors (see below), whose sum is σ = 17296920. Its totient is φ = 15234048.

The previous prime is 16261001. The next prime is 16261073. The reversal of 16261061 is 16016261.

It can be written as a sum of positive squares in 4 ways, for example, as 12285025 + 3976036 = 3505^2 + 1994^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16261061 - 2⁶ = 16260997 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 (16261001) 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, 1805 + ... + 5981.

It is an arithmetic number, because the mean of its divisors is an integer number (2162115).

Almost surely, 2^16261061 is an apocalyptic number.

It is an amenable number.

16261061 is a deficient number, since it is larger than the sum of its proper divisors (1035859).

16261061 is a wasteful number, since it uses less digits than its factorization.

16261061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 16261061 is about 4032.5005889646. The cubic root of 16261061 is about 253.3473074394.

The spelling of 16261061 in words is "sixteen million, two hundred sixty-one thousand, sixty-one".