106662405 has 16 divisors (see below), whose sum is σ = 170899200. Its totient is φ = 56806848.

The previous prime is 106662401. The next prime is 106662419. The reversal of 106662405 is 504266601.

It is not a de Polignac number, because 106662405 - 2² = 106662401 is a prime.

It is a super-2 number, since 2×106662405² = 22753737280768050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106662401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6996 + ... + 16194.

It is an arithmetic number, because the mean of its divisors is an integer number (10681200).

Almost surely, 2^106662405 is an apocalyptic number.

106662405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106662405 is a deficient number, since it is larger than the sum of its proper divisors (64236795).

106662405 is an equidigital number, since it uses as much as digits as its factorization.

106662405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9980.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 106662405 is about 10327.7492707753. The cubic root of 106662405 is about 474.2461245589.

The spelling of 106662405 in words is "one hundred six million, six hundred sixty-two thousand, four hundred five".