166461315236 has 24 divisors (see below), whose sum is σ = 291688223904. Its totient is φ = 83121888960.

The previous prime is 166461315227. The next prime is 166461315259. The reversal of 166461315236 is 632513164661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13339496 + ... + 13351968.

It is an arithmetic number, because the mean of its divisors is an integer number (12153675996).

Almost surely, 2^166461315236 is an apocalyptic number.

It is an amenable number.

166461315236 is a deficient number, since it is larger than the sum of its proper divisors (125226908668).

166461315236 is a wasteful number, since it uses less digits than its factorization.

166461315236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16571 (or 16569 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

Adding to 166461315236 its reverse (632513164661), we get a palindrome (798974479897).

The spelling of 166461315236 in words is "one hundred sixty-six billion, four hundred sixty-one million, three hundred fifteen thousand, two hundred thirty-six".