1155305400412 has 12 divisors (see below), whose sum is σ = 2022068898360. Its totient is φ = 577571429456.

The previous prime is 1155305400401. The next prime is 1155305400427. The reversal of 1155305400412 is 2140045035511.

It is a super-2 number, since 2×1155305400412² (a number of 25 digits) contains 22 as substring.

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, 20285698 + ... + 20342569.

It is an arithmetic number, because the mean of its divisors is an integer number (168505741530).

Almost surely, 2^{1155305400412} is an apocalyptic number.

It is an amenable number.

1155305400412 is a deficient number, since it is larger than the sum of its proper divisors (866763497948).

1155305400412 is a wasteful number, since it uses less digits than its factorization.

1155305400412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40635380 (or 40635378 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 1155305400412 in words is "one trillion, one hundred fifty-five billion, three hundred five million, four hundred thousand, four hundred twelve".