106566138986131 has 4 divisors (see below), whose sum is σ = 116253969803064. Its totient is φ = 96878308169200.

The previous prime is 106566138986117. The next prime is 106566138986179. The reversal of 106566138986131 is 131689831665601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106566138986131 - 2¹⁹ = 106566138461843 is a prime.

It is a super-2 number, since 2×106566138986131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106566138986231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4843915408450 + ... + 4843915408471.

It is an arithmetic number, because the mean of its divisors is an integer number (29063492450766).

Almost surely, 2^{106566138986131} is an apocalyptic number.

106566138986131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

106566138986131 is a deficient number, since it is larger than the sum of its proper divisors (9687830816933).

106566138986131 is an equidigital number, since it uses as much as digits as its factorization.

106566138986131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9687830816932.

The product of its (nonzero) digits is 33592320, while the sum is 64.

The spelling of 106566138986131 in words is "one hundred six trillion, five hundred sixty-six billion, one hundred thirty-eight million, nine hundred eighty-six thousand, one hundred thirty-one".