105666155131 has 8 divisors (see below), whose sum is σ = 107419980800. Its totient is φ = 103917527208.

The previous prime is 105666155129. The next prime is 105666155143. The reversal of 105666155131 is 131551666501.

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

It is a cyclic number.

It is not a de Polignac number, because 105666155131 - 2¹ = 105666155129 is a prime.

It is a super-2 number, since 2×105666155131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105666150131) 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, 1258431 + ... + 1339768.

It is an arithmetic number, because the mean of its divisors is an integer number (13427497600).

Almost surely, 2^105666155131 is an apocalyptic number.

105666155131 is a deficient number, since it is larger than the sum of its proper divisors (1753825669).

105666155131 is an equidigital number, since it uses as much as digits as its factorization.

105666155131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598873.

The product of its (nonzero) digits is 81000, while the sum is 40.

The spelling of 105666155131 in words is "one hundred five billion, six hundred sixty-six million, one hundred fifty-five thousand, one hundred thirty-one".