20366351 has 2 divisors, whose sum is σ = 20366352. Its totient is φ = 20366350.

The previous prime is 20366341. The next prime is 20366371. The reversal of 20366351 is 15366302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20366351 - 2¹⁸ = 20104207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20366351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20366341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10183175 + 10183176.

It is an arithmetic number, because the mean of its divisors is an integer number (10183176).

Almost surely, 2^20366351 is an apocalyptic number.

20366351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20366351 is an equidigital number, since it uses as much as digits as its factorization.

20366351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 20366351 is about 4512.9093720127. The cubic root of 20366351 is about 273.0891263515.

The spelling of 20366351 in words is "twenty million, three hundred sixty-six thousand, three hundred fifty-one".