1836666668667 has 32 divisors (see below), whose sum is σ = 2517277772800. Its totient is φ = 1190762456832.

The previous prime is 1836666668633. The next prime is 1836666668677. The reversal of 1836666668667 is 7668666666381.

It is not a de Polignac number, because 1836666668667 - 2⁸ = 1836666668411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1836666668677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12713613 + ... + 12857265.

It is an arithmetic number, because the mean of its divisors is an integer number (78664930400).

Almost surely, 2^{1836666668667} is an apocalyptic number.

1836666668667 is a deficient number, since it is larger than the sum of its proper divisors (680611104133).

1836666668667 is a wasteful number, since it uses less digits than its factorization.

1836666668667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144547.

The product of its digits is 2257403904, while the sum is 75.

The spelling of 1836666668667 in words is "one trillion, eight hundred thirty-six billion, six hundred sixty-six million, six hundred sixty-eight thousand, six hundred sixty-seven".