1418312841561 has 40 divisors (see below), whose sum is σ = 2641513875264. Its totient is φ = 736785888480.

The previous prime is 1418312841559. The next prime is 1418312841577. The reversal of 1418312841561 is 1651482138141.

It is a happy number.

1418312841561 is a `hidden beast` number, since 1 + 4 + 1 + 8 + 3 + 1 + 2 + 84 + 1 + 561 = 666.

It is not a de Polignac number, because 1418312841561 - 2¹ = 1418312841559 is a prime.

It is a super-2 number, since 2×1418312841561² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1418312841541) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 113695290 + ... + 113707763.

Almost surely, 2^{1418312841561} is an apocalyptic number.

1418312841561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1418312841561 is a deficient number, since it is larger than the sum of its proper divisors (1223201033703).

1418312841561 is a wasteful number, since it uses less digits than its factorization.

1418312841561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227403083 (or 227403074 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The spelling of 1418312841561 in words is "one trillion, four hundred eighteen billion, three hundred twelve million, eight hundred forty-one thousand, five hundred sixty-one".