16270661 has 4 divisors (see below), whose sum is σ = 17749824. Its totient is φ = 14791500.

The previous prime is 16270627. The next prime is 16270663. The reversal of 16270661 is 16607261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16270661 is a prime.

It is a pancake number, because a pancake can be divided into 16270661 parts by 5704 straight cuts.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16270663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739565 + ... + 739586.

It is an arithmetic number, because the mean of its divisors is an integer number (4437456).

Almost surely, 2^16270661 is an apocalyptic number.

16270661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16270661 is a deficient number, since it is larger than the sum of its proper divisors (1479163).

16270661 is a wasteful number, since it uses less digits than its factorization.

16270661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479162.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16270661 is about 4033.6907417401. The cubic root of 16270661 is about 253.3971536270.

The spelling of 16270661 in words is "sixteen million, two hundred seventy thousand, six hundred sixty-one".