161232760 has 192 divisors, whose sum is σ = 441132480. Its totient is φ = 52715520.

The previous prime is 161232739. The next prime is 161232769. The reversal of 161232760 is 67232161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161232769) 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, 2643130 + ... + 2643190.

It is an arithmetic number, because the mean of its divisors is an integer number (2297565).

Almost surely, 2^161232760 is an apocalyptic number.

161232760 is a gapful number since it is divisible by the number (10) 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 161232760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220566240).

161232760 is an abundant number, since it is smaller than the sum of its proper divisors (279899720).

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

161232760 is a wasteful number, since it uses less digits than its factorization.

161232760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 161232760 is about 12697.7462567182. The cubic root of 161232760 is about 544.2742183670.

The spelling of 161232760 in words is "one hundred sixty-one million, two hundred thirty-two thousand, seven hundred sixty".