161606115101016 has 128 divisors (see below), whose sum is σ = 461049216408000. Its totient is φ = 52411571997696.

The previous prime is 161606115100943. The next prime is 161606115101027. The reversal of 161606115101016 is 610101511606161.

It is a happy number.

161606115101016 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 0 + 611 + 5 + 10 + 10 + 16 = 666.

161606115101016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161606115101016² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 381142380 + ... + 381566148.

Almost surely, 2^{161606115101016} is an apocalyptic number.

It is an amenable number.

161606115101016 is an abundant number, since it is smaller than the sum of its proper divisors (299443101306984).

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

161606115101016 is a wasteful number, since it uses less digits than its factorization.

161606115101016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471538 (or 471528 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

Adding to 161606115101016 its reverse (610101511606161), we get a palindrome (771707626707177).

The spelling of 161606115101016 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred fifteen million, one hundred one thousand, sixteen".