106206521563 has 8 divisors (see below), whose sum is σ = 110116839600. Its totient is φ = 102312738528.

The previous prime is 106206521543. The next prime is 106206521611. The reversal of 106206521563 is 365125602601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106206521563 is a prime.

It is a super-2 number, since 2×106206521563² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106206521543) 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, 4120668 + ... + 4146361.

It is an arithmetic number, because the mean of its divisors is an integer number (13764604950).

Almost surely, 2^106206521563 is an apocalyptic number.

106206521563 is a deficient number, since it is larger than the sum of its proper divisors (3910318037).

106206521563 is an equidigital number, since it uses as much as digits as its factorization.

106206521563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8267501.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 106206521563 in words is "one hundred six billion, two hundred six million, five hundred twenty-one thousand, five hundred sixty-three".