2111660340463 has 16 divisors (see below), whose sum is σ = 2173843526400. Its totient is φ = 2049994033920.

The previous prime is 2111660340451. The next prime is 2111660340479. The reversal of 2111660340463 is 3640430661112.

It is a cyclic number.

It is not a de Polignac number, because 2111660340463 - 2⁹ = 2111660339951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111660340443) 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, 20694573 + ... + 20796361.

It is an arithmetic number, because the mean of its divisors is an integer number (135865220400).

Almost surely, 2^{2111660340463} is an apocalyptic number.

2111660340463 is a deficient number, since it is larger than the sum of its proper divisors (62183185937).

2111660340463 is a wasteful number, since it uses less digits than its factorization.

2111660340463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104322.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 2111660340463 in words is "two trillion, one hundred eleven billion, six hundred sixty million, three hundred forty thousand, four hundred sixty-three".