161606115101644 has 12 divisors (see below), whose sum is σ = 282833692384768. Its totient is φ = 80796488706000.

The previous prime is 161606115101621. The next prime is 161606115101677. The reversal of 161606115101644 is 446101511606161.

161606115101644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161606115101644² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161606115101644.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642155852 + ... + 1642254259.

Almost surely, 2^{161606115101644} is an apocalyptic number.

It is an amenable number.

161606115101644 is a deficient number, since it is larger than the sum of its proper divisors (121227577283124).

161606115101644 is a wasteful number, since it uses less digits than its factorization.

161606115101644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284422416 (or 3284422414 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 161606115101644 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred fifteen million, one hundred one thousand, six hundred forty-four".