11161307178212 has 12 divisors (see below), whose sum is σ = 19538693712300. Its totient is φ = 5578823260416.

The previous prime is 11161307178199. The next prime is 11161307178239. The reversal of 11161307178212 is 21287170316111.

It can be written as a sum of positive squares in 2 ways, for example, as 3933780357376 + 7227526820836 = 1983376^2 + 2688406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11161307178212.

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, 457568453 + ... + 457592844.

It is an arithmetic number, because the mean of its divisors is an integer number (1628224476025).

Almost surely, 2^{11161307178212} is an apocalyptic number.

It is an amenable number.

11161307178212 is a deficient number, since it is larger than the sum of its proper divisors (8377386534088).

11161307178212 is a wasteful number, since it uses less digits than its factorization.

11161307178212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915164350 (or 915164348 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 41.

The spelling of 11161307178212 in words is "eleven trillion, one hundred sixty-one billion, three hundred seven million, one hundred seventy-eight thousand, two hundred twelve".