11465661437212 has 6 divisors (see below), whose sum is σ = 20064907515128. Its totient is φ = 5732830718604.

The previous prime is 11465661437189. The next prime is 11465661437221. The reversal of 11465661437212 is 21273416656411.

It is a super-2 number, since 2×11465661437212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433207679648 + ... + 1433207679655.

Almost surely, 2^{11465661437212} is an apocalyptic number.

It is an amenable number.

11465661437212 is a deficient number, since it is larger than the sum of its proper divisors (8599246077916).

11465661437212 is a wasteful number, since it uses less digits than its factorization.

11465661437212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866415359307 (or 2866415359305 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The spelling of 11465661437212 in words is "eleven trillion, four hundred sixty-five billion, six hundred sixty-one million, four hundred thirty-seven thousand, two hundred twelve".