11556142148873 has 8 divisors (see below), whose sum is σ = 13207047986880. Its totient is φ = 9905243407920.

The previous prime is 11556142148857. The next prime is 11556142148879. The reversal of 11556142148873 is 37884124165511.

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

It is not a de Polignac number, because 11556142148873 - 2⁴ = 11556142148857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11556142148879) 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, 2355923 + ... + 5353751.

It is an arithmetic number, because the mean of its divisors is an integer number (1650880998360).

Almost surely, 2^{11556142148873} is an apocalyptic number.

It is an amenable number.

11556142148873 is a deficient number, since it is larger than the sum of its proper divisors (1650905838007).

11556142148873 is an equidigital number, since it uses as much as digits as its factorization.

11556142148873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548527.

The product of its digits is 6451200, while the sum is 56.

The spelling of 11556142148873 in words is "eleven trillion, five hundred fifty-six billion, one hundred forty-two million, one hundred forty-eight thousand, eight hundred seventy-three".