11554666420423 has 16 divisors (see below), whose sum is σ = 13900451192320. Its totient is φ = 9382668729696.

The previous prime is 11554666420379. The next prime is 11554666420489. The reversal of 11554666420423 is 32402466645511.

It is not a de Polignac number, because 11554666420423 - 2²⁵ = 11554632865991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11554666460423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27049486 + ... + 27473332.

It is an arithmetic number, because the mean of its divisors is an integer number (868778199520).

Almost surely, 2^{11554666420423} is an apocalyptic number.

11554666420423 is a deficient number, since it is larger than the sum of its proper divisors (2345784771897).

11554666420423 is a wasteful number, since it uses less digits than its factorization.

11554666420423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628846.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 11554666420423 in words is "eleven trillion, five hundred fifty-four billion, six hundred sixty-six million, four hundred twenty thousand, four hundred twenty-three".