1418168975161 has 9 divisors (see below), whose sum is σ = 1433056725549. Its totient is φ = 1403434353024.

The previous prime is 1418168975143. The next prime is 1418168975227. The reversal of 1418168975161 is 1615798618141.

It is a happy number.

The square root of 1418168975161 is 1190869.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 377156885161 + 1041012090000 = 614131^2 + 1020300^2 .

It is not a de Polignac number, because 1418168975161 - 2²⁵ = 1418135420729 is a prime.

It is a super-2 number, since 2×1418168975161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1418168975096 and 1418168975105.

It is not an unprimeable number, because it can be changed into a prime (1418168975101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 115508155 + ... + 115520431.

It is an arithmetic number, because the mean of its divisors is an integer number (159228525061).

Almost surely, 2^{1418168975161} is an apocalyptic number.

1418168975161 is the 1190869-th square number.

1418168975161 is the 595435-th centered octagonal number.

It is an amenable number.

1418168975161 is a deficient number, since it is larger than the sum of its proper divisors (14887750388).

1418168975161 is an frugal number, since it uses more digits than its factorization.

1418168975161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24748 (or 12374 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 58.

The spelling of 1418168975161 in words is "one trillion, four hundred eighteen billion, one hundred sixty-eight million, nine hundred seventy-five thousand, one hundred sixty-one".