1611586615412 has 24 divisors (see below), whose sum is σ = 2825437174560. Its totient is φ = 804319074720.

The previous prime is 1611586615411. The next prime is 1611586615427. The reversal of 1611586615412 is 2145166851161.

It is a super-2 number, since 2×1611586615412² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611586615411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45614378 + ... + 45649694.

It is an arithmetic number, because the mean of its divisors is an integer number (117726548940).

Almost surely, 2^{1611586615412} is an apocalyptic number.

It is an amenable number.

1611586615412 is a deficient number, since it is larger than the sum of its proper divisors (1213850559148).

1611586615412 is a wasteful number, since it uses less digits than its factorization.

1611586615412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55871 (or 55869 counting only the distinct ones).

The product of its digits is 345600, while the sum is 47.

The spelling of 1611586615412 in words is "one trillion, six hundred eleven billion, five hundred eighty-six million, six hundred fifteen thousand, four hundred twelve".