101545685667673 has 4 divisors (see below), whose sum is σ = 109356892257508. Its totient is φ = 93734479077840.

The previous prime is 101545685667641. The next prime is 101545685667689. The reversal of 101545685667673 is 376766586545101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14629072091209 + 86916613576464 = 3824797^2 + 9322908^2 .

It is a cyclic number.

It is not a de Polignac number, because 101545685667673 - 2⁵ = 101545685667641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101545685667473) 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, 3905603294898 + ... + 3905603294923.

It is an arithmetic number, because the mean of its divisors is an integer number (27339223064377).

Almost surely, 2^{101545685667673} is an apocalyptic number.

101545685667673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101545685667673 is a deficient number, since it is larger than the sum of its proper divisors (7811206589835).

101545685667673 is an equidigital number, since it uses as much as digits as its factorization.

101545685667673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811206589834.

The product of its (nonzero) digits is 762048000, while the sum is 70.

The spelling of 101545685667673 in words is "one hundred one trillion, five hundred forty-five billion, six hundred eighty-five million, six hundred sixty-seven thousand, six hundred seventy-three".