1365856711172 has 12 divisors (see below), whose sum is σ = 2390295600336. Its totient is φ = 682915111080.

The previous prime is 1365856711171. The next prime is 1365856711201. The reversal of 1365856711172 is 2711176585631.

It is a happy number.

It is a super-2 number, since 2×1365856711172² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1365856711171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3077258 + ... + 3493025.

It is an arithmetic number, because the mean of its divisors is an integer number (199191300028).

Almost surely, 2^{1365856711172} is an apocalyptic number.

It is an amenable number.

1365856711172 is a deficient number, since it is larger than the sum of its proper divisors (1024438889164).

1365856711172 is a wasteful number, since it uses less digits than its factorization.

1365856711172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622258 (or 6622256 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 53.

The spelling of 1365856711172 in words is "one trillion, three hundred sixty-five billion, eight hundred fifty-six million, seven hundred eleven thousand, one hundred seventy-two".