166007946739 has 8 divisors (see below), whose sum is σ = 166636768032. Its totient is φ = 165379549440.

The previous prime is 166007946719. The next prime is 166007946779. The reversal of 166007946739 is 937649700661.

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 166007946739 - 2¹¹ = 166007944691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166007946719) 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, 689827 + ... + 898819.

It is an arithmetic number, because the mean of its divisors is an integer number (20829596004).

Almost surely, 2^166007946739 is an apocalyptic number.

166007946739 is a deficient number, since it is larger than the sum of its proper divisors (628821293).

166007946739 is a wasteful number, since it uses less digits than its factorization.

166007946739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211997.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 166007946739 in words is "one hundred sixty-six billion, seven million, nine hundred forty-six thousand, seven hundred thirty-nine".