109661626 has 8 divisors (see below), whose sum is σ = 165328020. Its totient is φ = 54552288.

The previous prime is 109661609. The next prime is 109661681. The reversal of 109661626 is 626166901.

It can be written as a sum of positive squares in 2 ways, for example, as 73119601 + 36542025 = 8551^2 + 6045^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138771 + ... + 139558.

Almost surely, 2^109661626 is an apocalyptic number.

109661626 is a deficient number, since it is larger than the sum of its proper divisors (55666394).

109661626 is a wasteful number, since it uses less digits than its factorization.

109661626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278528.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 109661626 is about 10471.9447095561. The cubic root of 109661626 is about 478.6501804993.

The spelling of 109661626 in words is "one hundred nine million, six hundred sixty-one thousand, six hundred twenty-six".