11606421455 has 4 divisors (see below), whose sum is σ = 13927705752. Its totient is φ = 9285137160.

The previous prime is 11606421401. The next prime is 11606421467. The reversal of 11606421455 is 55412460611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11606421455 - 2¹² = 11606417359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160642141 + ... + 1160642150.

It is an arithmetic number, because the mean of its divisors is an integer number (3481926438).

Almost surely, 2^11606421455 is an apocalyptic number.

11606421455 is a deficient number, since it is larger than the sum of its proper divisors (2321284297).

11606421455 is an equidigital number, since it uses as much as digits as its factorization.

11606421455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321284296.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 11606421455 in words is "eleven billion, six hundred six million, four hundred twenty-one thousand, four hundred fifty-five".