11866137701 has 8 divisors (see below), whose sum is σ = 12952653600. Its totient is φ = 10780917840.

The previous prime is 11866137677. The next prime is 11866137707. The reversal of 11866137701 is 10773166811.

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

It is a de Polignac number, because none of the positive numbers 2^k-11866137701 is a prime.

It is a super-4 number, since 4×11866137701⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11866137707) 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, 304811 + ... + 341528.

It is an arithmetic number, because the mean of its divisors is an integer number (1619081700).

Almost surely, 2^11866137701 is an apocalyptic number.

11866137701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11866137701 is a deficient number, since it is larger than the sum of its proper divisors (1086515899).

11866137701 is a wasteful number, since it uses less digits than its factorization.

11866137701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648019.

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 11866137701 in words is "eleven billion, eight hundred sixty-six million, one hundred thirty-seven thousand, seven hundred one".