101666410 has 16 divisors (see below), whose sum is σ = 183151656. Its totient is φ = 40632768.

The previous prime is 101666401. The next prime is 101666419. The reversal of 101666410 is 14666101.

It is an interprime number because it is at equal distance from previous prime (101666401) and next prime (101666419).

It can be written as a sum of positive squares in 4 ways, for example, as 95824521 + 5841889 = 9789^2 + 2417^2 .

It is not an unprimeable number, because it can be changed into a prime (101666419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11032 + ... + 18028.

Almost surely, 2^101666410 is an apocalyptic number.

101666410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101666410 is a deficient number, since it is larger than the sum of its proper divisors (81485246).

101666410 is a wasteful number, since it uses less digits than its factorization.

101666410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8457.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 101666410 is about 10082.9762471207. The cubic root of 101666410 is about 466.7229563619.

The spelling of 101666410 in words is "one hundred one million, six hundred sixty-six thousand, four hundred ten".