11866708916877 has 4 divisors (see below), whose sum is σ = 15822278555840. Its totient is φ = 7911139277916.

The previous prime is 11866708916863. The next prime is 11866708916891. The reversal of 11866708916877 is 77861980766811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11866708916863) and next prime (11866708916891).

It is not a de Polignac number, because 11866708916877 - 2²³ = 11866700528269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11866708916799 and 11866708916808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11866708916807) 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, 1977784819477 + ... + 1977784819482.

It is an arithmetic number, because the mean of its divisors is an integer number (3955569638960).

Almost surely, 2^{11866708916877} is an apocalyptic number.

It is an amenable number.

11866708916877 is a deficient number, since it is larger than the sum of its proper divisors (3955569638963).

11866708916877 is an equidigital number, since it uses as much as digits as its factorization.

11866708916877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955569638962.

The product of its (nonzero) digits is 341397504, while the sum is 75.

The spelling of 11866708916877 in words is "eleven trillion, eight hundred sixty-six billion, seven hundred eight million, nine hundred sixteen thousand, eight hundred seventy-seven".