101660 has 48 divisors (see below), whose sum is σ = 254016. Its totient is φ = 33792.

The previous prime is 101653. The next prime is 101663. The reversal of 101660 is 66101.

101660 = T₁₆ + T₁₇ + ... + T₈₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101663) by changing a digit.

101660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4409 + ... + 4431.

It is an arithmetic number, because the mean of its divisors is an integer number (5292).

2¹⁰¹⁶⁶⁰ is an apocalyptic number.

101660 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 101660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127008).

101660 is an abundant number, since it is smaller than the sum of its proper divisors (152356).

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

101660 is a wasteful number, since it uses less digits than its factorization.

101660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 101660 is about 318.8416534896. The cubic root of 101660 is about 46.6713147298.

Adding to 101660 its reverse (66101), we get a palindrome (167761).

The spelling of 101660 in words is "one hundred one thousand, six hundred sixty".