11717420766 has 16 divisors (see below), whose sum is σ = 23519447184. Its totient is φ = 3891705984.

The previous prime is 11717420753. The next prime is 11717420779. The reversal of 11717420766 is 66702471711.

It is an interprime number because it is at equal distance from previous prime (11717420753) and next prime (11717420779).

It is a super-3 number, since 3×11717420766³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3523435 + ... + 3526758.

It is an arithmetic number, because the mean of its divisors is an integer number (1469965449).

Almost surely, 2^11717420766 is an apocalyptic number.

11717420766 is an abundant number, since it is smaller than the sum of its proper divisors (11802026418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11717420766 is a wasteful number, since it uses less digits than its factorization.

11717420766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050475.

The product of its (nonzero) digits is 98784, while the sum is 42.

The spelling of 11717420766 in words is "eleven billion, seven hundred seventeen million, four hundred twenty thousand, seven hundred sixty-six".