161606110556150 has 96 divisors (see below), whose sum is σ = 324237774516768. Its totient is φ = 59572625817600.

The previous prime is 161606110556141. The next prime is 161606110556153. The reversal of 161606110556150 is 51655011606161.

It is a super-2 number, since 2×161606110556150² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161606110556153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1316453174 + ... + 1316575926.

It is an arithmetic number, because the mean of its divisors is an integer number (3377476817883).

Almost surely, 2^{161606110556150} is an apocalyptic number.

161606110556150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161606110556150 is an abundant number, since it is smaller than the sum of its proper divisors (162631663960618).

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

161606110556150 is a wasteful number, since it uses less digits than its factorization.

161606110556150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126066 (or 126061 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 161606110556150 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred ten million, five hundred fifty-six thousand, one hundred fifty".