11667307745 has 4 divisors (see below), whose sum is σ = 14000769300. Its totient is φ = 9333846192.

The previous prime is 11667307741. The next prime is 11667307783. The reversal of 11667307745 is 54770376611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1708664896 + 9958642849 = 41336^2 + 99793^2 .

It is a cyclic number.

It is not a de Polignac number, because 11667307745 - 2² = 11667307741 is a prime.

It is a super-2 number, since 2×11667307745² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11667307745.

It is not an unprimeable number, because it can be changed into a prime (11667307741) 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, 1166730770 + ... + 1166730779.

It is an arithmetic number, because the mean of its divisors is an integer number (3500192325).

Almost surely, 2^11667307745 is an apocalyptic number.

It is an amenable number.

11667307745 is a deficient number, since it is larger than the sum of its proper divisors (2333461555).

11667307745 is an equidigital number, since it uses as much as digits as its factorization.

11667307745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333461554.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 11667307745 in words is "eleven billion, six hundred sixty-seven million, three hundred seven thousand, seven hundred forty-five".