16667627521243 has 16 divisors (see below), whose sum is σ = 17014817282400. Its totient is φ = 16322685096960.

The previous prime is 16667627521219. The next prime is 16667627521267. The reversal of 16667627521243 is 34212572676661.

It is an interprime number because it is at equal distance from previous prime (16667627521219) and next prime (16667627521267).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16667627521243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16667627524243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20872453 + ... + 21656281.

It is an arithmetic number, because the mean of its divisors is an integer number (1063426080150).

Almost surely, 2^{16667627521243} is an apocalyptic number.

16667627521243 is a deficient number, since it is larger than the sum of its proper divisors (347189761157).

16667627521243 is a wasteful number, since it uses less digits than its factorization.

16667627521243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785262.

The product of its digits is 30481920, while the sum is 58.

The spelling of 16667627521243 in words is "sixteen trillion, six hundred sixty-seven billion, six hundred twenty-seven million, five hundred twenty-one thousand, two hundred forty-three".