16540667658037 has 2 divisors, whose sum is σ = 16540667658038. Its totient is φ = 16540667658036.

The previous prime is 16540667658001. The next prime is 16540667658059. The reversal of 16540667658037 is 73085676604561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15112143104356 + 1428524553681 = 3887434^2 + 1195209^2 .

It is a cyclic number.

It is not a de Polignac number, because 16540667658037 - 2¹¹ = 16540667655989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16540667658037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16540667658077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270333829018 + 8270333829019.

It is an arithmetic number, because the mean of its divisors is an integer number (8270333829019).

Almost surely, 2^{16540667658037} is an apocalyptic number.

It is an amenable number.

16540667658037 is a deficient number, since it is larger than the sum of its proper divisors (1).

16540667658037 is an equidigital number, since it uses as much as digits as its factorization.

16540667658037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 152409600, while the sum is 64.

The spelling of 16540667658037 in words is "sixteen trillion, five hundred forty billion, six hundred sixty-seven million, six hundred fifty-eight thousand, thirty-seven".