161606115101598 has 64 divisors (see below), whose sum is σ = 327252501838080. Its totient is φ = 53198523366912.

The previous prime is 161606115101591. The next prime is 161606115101621. The reversal of 161606115101598 is 895101511606161.

It is a super-2 number, since 2×161606115101598² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 161606115101598.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161606115101591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1456656013 + ... + 1456766951.

It is an arithmetic number, because the mean of its divisors is an integer number (5113320341220).

Almost surely, 2^{161606115101598} is an apocalyptic number.

161606115101598 is an abundant number, since it is smaller than the sum of its proper divisors (165646386736482).

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

161606115101598 is a wasteful number, since it uses less digits than its factorization.

161606115101598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118121.

The product of its (nonzero) digits is 388800, while the sum is 51.

The spelling of 161606115101598 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred fifteen million, one hundred one thousand, five hundred ninety-eight".