166939063629 has 8 divisors (see below), whose sum is σ = 239707373472. Its totient is φ = 102731731440.

The previous prime is 166939063597. The next prime is 166939063649. The reversal of 166939063629 is 926360939661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166939063629 - 2⁵ = 166939063597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166939063649) 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, 2140244367 + ... + 2140244444.

It is an arithmetic number, because the mean of its divisors is an integer number (29963421684).

Almost surely, 2^166939063629 is an apocalyptic number.

It is an amenable number.

166939063629 is a deficient number, since it is larger than the sum of its proper divisors (72768309843).

166939063629 is a wasteful number, since it uses less digits than its factorization.

166939063629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280488827.

The product of its (nonzero) digits is 17006112, while the sum is 60.

The spelling of 166939063629 in words is "one hundred sixty-six billion, nine hundred thirty-nine million, sixty-three thousand, six hundred twenty-nine".