1606516115556 has 96 divisors (see below), whose sum is σ = 4178913564672. Its totient is φ = 476169287040.

The previous prime is 1606516115527. The next prime is 1606516115587. The reversal of 1606516115556 is 6555116156061.

It is a super-2 number, since 2×1606516115556² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10014330 + ... + 10173486.

It is an arithmetic number, because the mean of its divisors is an integer number (43530349632).

Almost surely, 2^{1606516115556} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606516115556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2089456782336).

1606516115556 is an abundant number, since it is smaller than the sum of its proper divisors (2572397449116).

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

1606516115556 is a wasteful number, since it uses less digits than its factorization.

1606516115556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160849 (or 160847 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 48.

The spelling of 1606516115556 in words is "one trillion, six hundred six billion, five hundred sixteen million, one hundred fifteen thousand, five hundred fifty-six".