161701260 has 96 divisors (see below), whose sum is σ = 519214080. Its totient is φ = 36834048.

The previous prime is 161701213. The next prime is 161701277. The reversal of 161701260 is 62107161.

161701260 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161701260² = 52294594971175200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161701260.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183942 + ... + 184818.

It is an arithmetic number, because the mean of its divisors is an integer number (5408480).

Almost surely, 2^161701260 is an apocalyptic number.

161701260 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 161701260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259607040).

161701260 is an abundant number, since it is smaller than the sum of its proper divisors (357512820).

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

161701260 is a wasteful number, since it uses less digits than its factorization.

161701260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 161701260 is about 12716.1810304824. The cubic root of 161701260 is about 544.8008811637.

The spelling of 161701260 in words is "one hundred sixty-one million, seven hundred one thousand, two hundred sixty".