166465334324461 has 8 divisors (see below), whose sum is σ = 168004673688600. Its totient is φ = 164931623258688.

The previous prime is 166465334324437. The next prime is 166465334324483. The reversal of 166465334324461 is 164423433564661.

It can be written as a sum of positive squares in 4 ways, for example, as 1773824422500 + 164691509901961 = 1331850^2 + 12833219^2 .

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 166465334324461 - 2²¹ = 166465332227309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166465334324396 and 166465334324405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166465334324411) 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, 1407015166 + ... + 1407133471.

It is an arithmetic number, because the mean of its divisors is an integer number (21000584211075).

Almost surely, 2^{166465334324461} is an apocalyptic number.

It is an amenable number.

166465334324461 is a deficient number, since it is larger than the sum of its proper divisors (1539339364139).

166465334324461 is a wasteful number, since it uses less digits than its factorization.

166465334324461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814149183.

The product of its digits is 89579520, while the sum is 58.

The spelling of 166465334324461 in words is "one hundred sixty-six trillion, four hundred sixty-five billion, three hundred thirty-four million, three hundred twenty-four thousand, four hundred sixty-one".