161606010565056 has 56 divisors (see below), whose sum is σ = 450086915399680. Its totient is φ = 51033477019392.

The previous prime is 161606010565019. The next prime is 161606010565079. The reversal of 161606010565056 is 650565010606161.

161606010565056 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161606010565056² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 161606010564996 and 161606010565014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22149942976 + ... + 22149950271.

Almost surely, 2^{161606010565056} is an apocalyptic number.

161606010565056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161606010565056 is an abundant number, since it is smaller than the sum of its proper divisors (288480904834624).

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

161606010565056 is a wasteful number, since it uses less digits than its factorization.

161606010565056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44299893281 (or 44299893271 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 161606010565056 in words is "one hundred sixty-one trillion, six hundred six billion, ten million, five hundred sixty-five thousand, fifty-six".