201661367 has 2 divisors, whose sum is σ = 201661368. Its totient is φ = 201661366.

The previous prime is 201661337. The next prime is 201661379. The reversal of 201661367 is 763166102.

201661367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201661367 - 2¹⁴ = 201644983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201661337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100830683 + 100830684.

It is an arithmetic number, because the mean of its divisors is an integer number (100830684).

Almost surely, 2^201661367 is an apocalyptic number.

201661367 is a deficient number, since it is larger than the sum of its proper divisors (1).

201661367 is an equidigital number, since it uses as much as digits as its factorization.

201661367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 201661367 is about 14200.7523392248. The cubic root of 201661367 is about 586.4183733581.

The spelling of 201661367 in words is "two hundred one million, six hundred sixty-one thousand, three hundred sixty-seven".