106720566 has 16 divisors (see below), whose sum is σ = 215514624. Its totient is φ = 35227944.

The previous prime is 106720561. The next prime is 106720567. The reversal of 106720566 is 665027601.

It is a super-2 number, since 2×106720566² = 22778558414720712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106720561) 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, 85726 + ... + 86961.

It is an arithmetic number, because the mean of its divisors is an integer number (13469664).

Almost surely, 2^106720566 is an apocalyptic number.

106720566 is an abundant number, since it is smaller than the sum of its proper divisors (108794058).

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

106720566 is a wasteful number, since it uses less digits than its factorization.

106720566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172795.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 106720566 is about 10330.5646505890. The cubic root of 106720566 is about 474.3323080551.

The spelling of 106720566 in words is "one hundred six million, seven hundred twenty thousand, five hundred sixty-six".