11967266461 has 8 divisors (see below), whose sum is σ = 12155072760. Its totient is φ = 11780105472.

The previous prime is 11967266429. The next prime is 11967266561. The reversal of 11967266461 is 16466276911.

It can be written as a sum of positive squares in 4 ways, for example, as 3021700900 + 8945565561 = 54970^2 + 94581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11967266461 - 2⁵ = 11967266429 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 (11967266401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123880 + ... + 198193.

It is an arithmetic number, because the mean of its divisors is an integer number (1519384095).

Almost surely, 2^11967266461 is an apocalyptic number.

It is an amenable number.

11967266461 is a deficient number, since it is larger than the sum of its proper divisors (187806299).

11967266461 is an equidigital number, since it uses as much as digits as its factorization.

11967266461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322655.

The product of its digits is 653184, while the sum is 49.

The spelling of 11967266461 in words is "eleven billion, nine hundred sixty-seven million, two hundred sixty-six thousand, four hundred sixty-one".