161600190048 has 384 divisors, whose sum is σ = 537098688000. Its totient is φ = 46832670720.

The previous prime is 161600190041. The next prime is 161600190053. The reversal of 161600190048 is 840091006161.

It is a happy number.

161600190048 is a `hidden beast` number, since 1 + 6 + 1 + 600 + 1 + 9 + 0 + 0 + 48 = 666.

It is a super-2 number, since 2×161600190048² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 161600189994 and 161600190021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161600190041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20743338 + ... + 20751126.

It is an arithmetic number, because the mean of its divisors is an integer number (1398694500).

Almost surely, 2^161600190048 is an apocalyptic number.

161600190048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161600190048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268549344000).

161600190048 is an abundant number, since it is smaller than the sum of its proper divisors (375498497952).

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

161600190048 is a wasteful number, since it uses less digits than its factorization.

161600190048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915 (or 7901 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 161600190048 in words is "one hundred sixty-one billion, six hundred million, one hundred ninety thousand, forty-eight".