1618158254812 has 48 divisors (see below), whose sum is σ = 3103586906112. Its totient is φ = 732104815680.

The previous prime is 1618158254789. The next prime is 1618158254899. The reversal of 1618158254812 is 2184528518161.

It is a super-2 number, since 2×1618158254812² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1618158254812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84344173 + ... + 84363355.

It is an arithmetic number, because the mean of its divisors is an integer number (64658060544).

Almost surely, 2^{1618158254812} is an apocalyptic number.

It is an amenable number.

1618158254812 is a deficient number, since it is larger than the sum of its proper divisors (1485428651300).

1618158254812 is a wasteful number, since it uses less digits than its factorization.

1618158254812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28018 (or 28016 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 52.

The spelling of 1618158254812 in words is "one trillion, six hundred eighteen billion, one hundred fifty-eight million, two hundred fifty-four thousand, eight hundred twelve".