105716665501 has 8 divisors (see below), whose sum is σ = 106288741944. Its totient is φ = 105145835520.

The previous prime is 105716665489. The next prime is 105716665529. The reversal of 105716665501 is 105566617501.

It can be written as a sum of positive squares in 4 ways, for example, as 93632940025 + 12083725476 = 305995^2 + 109926^2 .

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 105716665501 - 2⁵ = 105716665469 is a prime.

It is a super-2 number, since 2×105716665501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105716465501) 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, 141280 + ... + 481033.

It is an arithmetic number, because the mean of its divisors is an integer number (13286092743).

Almost surely, 2^105716665501 is an apocalyptic number.

It is an amenable number.

105716665501 is a deficient number, since it is larger than the sum of its proper divisors (572076443).

105716665501 is an equidigital number, since it uses as much as digits as its factorization.

105716665501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623231.

The product of its (nonzero) digits is 189000, while the sum is 43.

The spelling of 105716665501 in words is "one hundred five billion, seven hundred sixteen million, six hundred sixty-five thousand, five hundred one".