106661900 has 18 divisors (see below), whose sum is σ = 231456540. Its totient is φ = 42664720.

The previous prime is 106661899. The next prime is 106661963. The reversal of 106661900 is 9166601.

It is a super-2 number, since 2×106661900² = 22753521823220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 533210 + ... + 533409.

Almost surely, 2^106661900 is an apocalyptic number.

106661900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106661900 is an abundant number, since it is smaller than the sum of its proper divisors (124794640).

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

106661900 is a wasteful number, since it uses less digits than its factorization.

106661900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066633 (or 1066626 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 106661900 is about 10327.7248220506. The cubic root of 106661900 is about 474.2453761081.

The spelling of 106661900 in words is "one hundred six million, six hundred sixty-one thousand, nine hundred".