11866370535461 has 12 divisors (see below), whose sum is σ = 12967267751460. Its totient is φ = 10853081291520.

The previous prime is 11866370535457. The next prime is 11866370535469. The reversal of 11866370535461 is 16453507366811.

11866370535461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1187892909025 + 10678477626436 = 1089905^2 + 3267794^2 .

It is not a de Polignac number, because 11866370535461 - 2² = 11866370535457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11866370535397 and 11866370535406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11866370535469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322069700 + ... + 322106541.

It is an arithmetic number, because the mean of its divisors is an integer number (1080605645955).

Almost surely, 2^{11866370535461} is an apocalyptic number.

It is an amenable number.

11866370535461 is a deficient number, since it is larger than the sum of its proper divisors (1100897215999).

11866370535461 is a wasteful number, since it uses less digits than its factorization.

11866370535461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644176376 (or 644176363 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 11866370535461 in words is "eleven trillion, eight hundred sixty-six billion, three hundred seventy million, five hundred thirty-five thousand, four hundred sixty-one".