11661512460027 has 8 divisors (see below), whose sum is σ = 15548755083264. Its totient is φ = 7774305738408.

The previous prime is 11661512460023. The next prime is 11661512460047. The reversal of 11661512460027 is 72006421516611.

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

It is not a de Polignac number, because 11661512460027 - 2² = 11661512460023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11661512460023) 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, 8208123 + ... + 9523460.

It is an arithmetic number, because the mean of its divisors is an integer number (1943594385408).

Almost surely, 2^{11661512460027} is an apocalyptic number.

11661512460027 is a deficient number, since it is larger than the sum of its proper divisors (3887242623237).

11661512460027 is a wasteful number, since it uses less digits than its factorization.

11661512460027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17950809.

The product of its (nonzero) digits is 120960, while the sum is 42.

Adding to 11661512460027 its reverse (72006421516611), we get a palindrome (83667933976638).

The spelling of 11661512460027 in words is "eleven trillion, six hundred sixty-one billion, five hundred twelve million, four hundred sixty thousand, twenty-seven".