1107665166523 has 4 divisors (see below), whose sum is σ = 1107697230288. Its totient is φ = 1107633102760.

The previous prime is 1107665166499. The next prime is 1107665166527. The reversal of 1107665166523 is 3256615667011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1107665166523 - 2¹³ = 1107665158331 is a prime.

It is a super-2 number, since 2×1107665166523² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1107665166527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15980008 + ... + 16049173.

It is an arithmetic number, because the mean of its divisors is an integer number (276924307572).

Almost surely, 2^{1107665166523} is an apocalyptic number.

1107665166523 is a deficient number, since it is larger than the sum of its proper divisors (32063765).

1107665166523 is an equidigital number, since it uses as much as digits as its factorization.

1107665166523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32063764.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 1107665166523 in words is "one trillion, one hundred seven billion, six hundred sixty-five million, one hundred sixty-six thousand, five hundred twenty-three".