1605606056516 has 48 divisors (see below), whose sum is σ = 3516067387392. Its totient is φ = 623252426400.

The previous prime is 1605606056507. The next prime is 1605606056539. The reversal of 1605606056516 is 6156506065061.

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, 9534626 + ... + 9701561.

It is an arithmetic number, because the mean of its divisors is an integer number (73251403904).

Almost surely, 2^{1605606056516} is an apocalyptic number.

It is an amenable number.

1605606056516 is an abundant number, since it is smaller than the sum of its proper divisors (1910461330876).

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

1605606056516 is a wasteful number, since it uses less digits than its factorization.

1605606056516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19236480 (or 19236478 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 1605606056516 in words is "one trillion, six hundred five billion, six hundred six million, fifty-six thousand, five hundred sixteen".