11566601423 has 8 divisors (see below), whose sum is σ = 13189066128. Its totient is φ = 10048811904.

The previous prime is 11566601419. The next prime is 11566601447. The reversal of 11566601423 is 32410666511.

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 11566601423 - 2² = 11566601419 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 (11566601623) 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, 26168561 + ... + 26169002.

It is an arithmetic number, because the mean of its divisors is an integer number (1648633266).

Almost surely, 2^11566601423 is an apocalyptic number.

11566601423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11566601423 is a deficient number, since it is larger than the sum of its proper divisors (1622464705).

11566601423 is a wasteful number, since it uses less digits than its factorization.

11566601423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52337593.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 11566601423 in words is "eleven billion, five hundred sixty-six million, six hundred one thousand, four hundred twenty-three".