106664650 has 12 divisors (see below), whose sum is σ = 198396342. Its totient is φ = 42665840.

The previous prime is 106664629. The next prime is 106664653. The reversal of 106664650 is 56466601.

It can be written as a sum of positive squares in 3 ways, for example, as 68608089 + 38056561 = 8283^2 + 6169^2 .

It is a super-2 number, since 2×106664650² = 22754695119245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106664653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1066597 + ... + 1066696.

Almost surely, 2^106664650 is an apocalyptic number.

106664650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106664650 is a deficient number, since it is larger than the sum of its proper divisors (91731692).

106664650 is a wasteful number, since it uses less digits than its factorization.

106664650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133305 (or 2133300 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 106664650 is about 10327.8579579698. The cubic root of 106664650 is about 474.2494518014.

The spelling of 106664650 in words is "one hundred six million, six hundred sixty-four thousand, six hundred fifty".