161073340 has 24 divisors (see below), whose sum is σ = 340336080. Its totient is φ = 64032768.

The previous prime is 161073323. The next prime is 161073343. The reversal of 161073340 is 43370161.

161073340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161073343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21445 + ... + 27964.

It is an arithmetic number, because the mean of its divisors is an integer number (14180670).

Almost surely, 2^161073340 is an apocalyptic number.

161073340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161073340 is an abundant number, since it is smaller than the sum of its proper divisors (179262740).

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

161073340 is a wasteful number, since it uses less digits than its factorization.

161073340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49581 (or 49579 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 161073340 is about 12691.4672122651. The cubic root of 161073340 is about 544.0947742533.

The spelling of 161073340 in words is "one hundred sixty-one million, seventy-three thousand, three hundred forty".