161076520 has 64 divisors (see below), whose sum is σ = 403833600. Its totient is φ = 57319680.

The previous prime is 161076467. The next prime is 161076529. The reversal of 161076520 is 25670161.

It is not an unprimeable number, because it can be changed into a prime (161076529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16786 + ... + 24574.

It is an arithmetic number, because the mean of its divisors is an integer number (6309900).

Almost surely, 2^161076520 is an apocalyptic number.

161076520 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 161076520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201916800).

161076520 is an abundant number, since it is smaller than the sum of its proper divisors (242757080).

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

161076520 is a wasteful number, since it uses less digits than its factorization.

161076520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858 (or 7854 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 161076520 is about 12691.5924926701. The cubic root of 161076520 is about 544.0983548375.

It can be divided in two parts, 161076 and 520, that added together give a triangular number (161596 = T₅₆₈).

The spelling of 161076520 in words is "one hundred sixty-one million, seventy-six thousand, five hundred twenty".