106661560 has 16 divisors (see below), whose sum is σ = 239988600. Its totient is φ = 42664608.

The previous prime is 106661551. The next prime is 106661563. The reversal of 106661560 is 65166601.

It is a super-2 number, since 2×106661560² = 22753376763267200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106661563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333230 + ... + 1333309.

Almost surely, 2^106661560 is an apocalyptic number.

106661560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106661560 is an abundant number, since it is smaller than the sum of its proper divisors (133327040).

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

106661560 is a wasteful number, since it uses less digits than its factorization.

106661560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666550 (or 2666546 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 106661560 is about 10327.7083614905. The cubic root of 106661560 is about 474.2448721994.

It can be divided in two parts, 1066 and 61560, that added together give a palindrome (62626).

The spelling of 106661560 in words is "one hundred six million, six hundred sixty-one thousand, five hundred sixty".