1144155636212 has 12 divisors (see below), whose sum is σ = 2071316238180. Its totient is φ = 552350996736.

The previous prime is 1144155636209. The next prime is 1144155636251. The reversal of 1144155636212 is 2126365514411.

It can be written as a sum of positive squares in 2 ways, for example, as 296419269136 + 847736367076 = 544444^2 + 920726^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1144155636212.

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, 4931705213 + ... + 4931705444.

It is an arithmetic number, because the mean of its divisors is an integer number (172609686515).

Almost surely, 2^{1144155636212} is an apocalyptic number.

It is an amenable number.

1144155636212 is a deficient number, since it is larger than the sum of its proper divisors (927160601968).

1144155636212 is a wasteful number, since it uses less digits than its factorization.

1144155636212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863410690 (or 9863410688 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The spelling of 1144155636212 in words is "one trillion, one hundred forty-four billion, one hundred fifty-five million, six hundred thirty-six thousand, two hundred twelve".