161900060 has 24 divisors (see below), whose sum is σ = 388560480. Its totient is φ = 55508544.

The previous prime is 161900047. The next prime is 161900113. The reversal of 161900060 is 60009161.

It is a junction number, because it is equal to n+sod(n) for n = 161899999 and 161900035.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578075 + ... + 578354.

It is an arithmetic number, because the mean of its divisors is an integer number (16190020).

Almost surely, 2^161900060 is an apocalyptic number.

161900060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161900060 is an abundant number, since it is smaller than the sum of its proper divisors (226660420).

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

161900060 is a wasteful number, since it uses less digits than its factorization.

161900060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156445 (or 1156443 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 161900060 is about 12723.9954416842. The cubic root of 161900060 is about 545.0240541525.

The spelling of 161900060 in words is "one hundred sixty-one million, nine hundred thousand, sixty".