166831563001 has 16 divisors (see below), whose sum is σ = 185959368000. Its totient is φ = 148740185088.

The previous prime is 166831562987. The next prime is 166831563011. The reversal of 166831563001 is 100365138661.

It is a cyclic number.

It is not a de Polignac number, because 166831563001 - 2⁹ = 166831562489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166831563011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5463825 + ... + 5494273.

It is an arithmetic number, because the mean of its divisors is an integer number (11622460500).

Almost surely, 2^166831563001 is an apocalyptic number.

It is an amenable number.

166831563001 is a deficient number, since it is larger than the sum of its proper divisors (19127804999).

166831563001 is a wasteful number, since it uses less digits than its factorization.

166831563001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47448.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 166831563001 in words is "one hundred sixty-six billion, eight hundred thirty-one million, five hundred sixty-three thousand, one".