107665540 has 24 divisors (see below), whose sum is σ = 228215232. Its totient is φ = 42662880.

The previous prime is 107665531. The next prime is 107665541. The reversal of 107665540 is 45566701.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 107665496 and 107665505.

It is not an unprimeable number, because it can be changed into a prime (107665541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23016 + ... + 27295.

It is an arithmetic number, because the mean of its divisors is an integer number (9508968).

Almost surely, 2^107665540 is an apocalyptic number.

107665540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107665540 is an abundant number, since it is smaller than the sum of its proper divisors (120549692).

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

107665540 is a wasteful number, since it uses less digits than its factorization.

107665540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50427 (or 50425 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 107665540 is about 10376.2006534184. The cubic root of 107665540 is about 475.7282126616.

The spelling of 107665540 in words is "one hundred seven million, six hundred sixty-five thousand, five hundred forty".