161070660 has 96 divisors (see below), whose sum is σ = 502951680. Its totient is φ = 42794496.

The previous prime is 161070653. The next prime is 161070661. The reversal of 161070660 is 66070161.

161070660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161070661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271324 + ... + 271916.

It is an arithmetic number, because the mean of its divisors is an integer number (5239080).

Almost surely, 2^161070660 is an apocalyptic number.

161070660 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 161070660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251475840).

161070660 is an abundant number, since it is smaller than the sum of its proper divisors (341881020).

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

161070660 is a wasteful number, since it uses less digits than its factorization.

161070660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 161070660 is about 12691.3616290767. The cubic root of 161070660 is about 544.0917566174.

The spelling of 161070660 in words is "one hundred sixty-one million, seventy thousand, six hundred sixty".