106661625 has 64 divisors (see below), whose sum is σ = 204871680. Its totient is φ = 48273600.

The previous prime is 106661609. The next prime is 106661663. The reversal of 106661625 is 526166601.

It is not a de Polignac number, because 106661625 - 2⁴ = 106661609 is a prime.

It is a super-2 number, since 2×106661625² = 22753404495281250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 469762 + ... + 469988.

It is an arithmetic number, because the mean of its divisors is an integer number (3201120).

Almost surely, 2^106661625 is an apocalyptic number.

106661625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106661625 is a deficient number, since it is larger than the sum of its proper divisors (98210055).

106661625 is a wasteful number, since it uses less digits than its factorization.

106661625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 106661625 is about 10327.7115083643. The cubic root of 106661625 is about 474.2449685349.

The spelling of 106661625 in words is "one hundred six million, six hundred sixty-one thousand, six hundred twenty-five".