11601372818557 has 8 divisors (see below), whose sum is σ = 11634863647680. Its totient is φ = 11567888518080.

The previous prime is 11601372818507. The next prime is 11601372818653. The reversal of 11601372818557 is 75581827310611.

It is a happy number.

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 11601372818557 - 2²⁷ = 11601238600829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11601372818498 and 11601372818507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11601372818507) 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, 1938213 + ... + 5192245.

It is an arithmetic number, because the mean of its divisors is an integer number (1454357955960).

Almost surely, 2^{11601372818557} is an apocalyptic number.

It is an amenable number.

11601372818557 is a deficient number, since it is larger than the sum of its proper divisors (33490829123).

11601372818557 is an equidigital number, since it uses as much as digits as its factorization.

11601372818557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264323.

The product of its (nonzero) digits is 2822400, while the sum is 55.

The spelling of 11601372818557 in words is "eleven trillion, six hundred one billion, three hundred seventy-two million, eight hundred eighteen thousand, five hundred fifty-seven".