161320760 has 16 divisors (see below), whose sum is σ = 362971800. Its totient is φ = 64528288.

The previous prime is 161320751. The next prime is 161320771. The reversal of 161320760 is 67023161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016470 + ... + 2016549.

Almost surely, 2^161320760 is an apocalyptic number.

161320760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161320760 is an abundant number, since it is smaller than the sum of its proper divisors (201651040).

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

161320760 is a wasteful number, since it uses less digits than its factorization.

161320760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033030 (or 4033026 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 161320760 is about 12701.2109658883. The cubic root of 161320760 is about 544.3732210346.

The spelling of 161320760 in words is "one hundred sixty-one million, three hundred twenty thousand, seven hundred sixty".