161601454050 has 96 divisors (see below), whose sum is σ = 410703499008. Its totient is φ = 42028768320.

The previous prime is 161601454043. The next prime is 161601454081. The reversal of 161601454050 is 50454106161.

161601454050 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 2×161601454050² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4387009 + ... + 4423691.

It is an arithmetic number, because the mean of its divisors is an integer number (4278161448).

Almost surely, 2^161601454050 is an apocalyptic number.

161601454050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161601454050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205351749504).

161601454050 is an abundant number, since it is smaller than the sum of its proper divisors (249102044958).

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

161601454050 is a wasteful number, since it uses less digits than its factorization.

161601454050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37424 (or 37419 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 161601454050 in words is "one hundred sixty-one billion, six hundred one million, four hundred fifty-four thousand, fifty".