16611151 has 2 divisors, whose sum is σ = 16611152. Its totient is φ = 16611150.

The previous prime is 16611143. The next prime is 16611157. The reversal of 16611151 is 15111661.

It is a strong prime.

It is an emirp because it is prime and its reverse (15111661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16611151 - 2³ = 16611143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16611157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8305575 + 8305576.

It is an arithmetic number, because the mean of its divisors is an integer number (8305576).

Almost surely, 2^16611151 is an apocalyptic number.

16611151 is a deficient number, since it is larger than the sum of its proper divisors (1).

16611151 is an equidigital number, since it uses as much as digits as its factorization.

16611151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 22.

The square root of 16611151 is about 4075.6779804101. The cubic root of 16611151 is about 255.1525474528.

The spelling of 16611151 in words is "sixteen million, six hundred eleven thousand, one hundred fifty-one".