366734040721 has 2 divisors, whose sum is σ = 366734040722. Its totient is φ = 366734040720.

The previous prime is 366734040707. The next prime is 366734040767. The reversal of 366734040721 is 127040437663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366465572496 + 268468225 = 605364^2 + 16385^2 .

It is a cyclic number.

It is not a de Polignac number, because 366734040721 - 2⁷ = 366734040593 is a prime.

It is not a weakly prime, because it can be changed into another prime (366734040521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183367020360 + 183367020361.

It is an arithmetic number, because the mean of its divisors is an integer number (183367020361).

Almost surely, 2^366734040721 is an apocalyptic number.

It is an amenable number.

366734040721 is a deficient number, since it is larger than the sum of its proper divisors (1).

366734040721 is an equidigital number, since it uses as much as digits as its factorization.

366734040721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 366734040721 in words is "three hundred sixty-six billion, seven hundred thirty-four million, forty thousand, seven hundred twenty-one".