1606405243674 has 192 divisors, whose sum is σ = 4080109904640. Its totient is φ = 412694092800.

The previous prime is 1606405243673. The next prime is 1606405243687. The reversal of 1606405243674 is 4763425046061.

It is not an unprimeable number, because it can be changed into a prime (1606405243673) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 361719294 + ... + 361723734.

It is an arithmetic number, because the mean of its divisors is an integer number (21250572420).

Almost surely, 2^{1606405243674} is an apocalyptic number.

1606405243674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606405243674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2040054952320).

1606405243674 is an abundant number, since it is smaller than the sum of its proper divisors (2473704660966).

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

1606405243674 is a wasteful number, since it uses less digits than its factorization.

1606405243674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237 (or 5226 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 1606405243674 in words is "one trillion, six hundred six billion, four hundred five million, two hundred forty-three thousand, six hundred seventy-four".