1617161676426 has 24 divisors (see below), whose sum is σ = 3509566228740. Its totient is φ = 538174518336.

The previous prime is 1617161676371. The next prime is 1617161676457. The reversal of 1617161676426 is 6246761617161.

It is a happy number.

1617161676426 is a `hidden beast` number, since 1 + 6 + 17 + 1 + 616 + 7 + 6 + 4 + 2 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1414432111401 + 202729565025 = 1189299^2 + 450255^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73269811 + ... + 73291878.

Almost surely, 2^{1617161676426} is an apocalyptic number.

1617161676426 is an abundant number, since it is smaller than the sum of its proper divisors (1892404552314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1617161676426 is a wasteful number, since it uses less digits than its factorization.

1617161676426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146562310 (or 146562307 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 1617161676426 in words is "one trillion, six hundred seventeen billion, one hundred sixty-one million, six hundred seventy-six thousand, four hundred twenty-six".