166502015602 has 8 divisors (see below), whose sum is σ = 268964794476. Its totient is φ = 76847084112.

The previous prime is 166502015551. The next prime is 166502015663. The reversal of 166502015602 is 206510205661.

It can be written as a sum of positive squares in 2 ways, for example, as 166252723081 + 249292521 = 407741^2 + 15789^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3201961813 + ... + 3201961864.

Almost surely, 2^166502015602 is an apocalyptic number.

166502015602 is a deficient number, since it is larger than the sum of its proper divisors (102462778874).

166502015602 is a wasteful number, since it uses less digits than its factorization.

166502015602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6403923692.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 166502015602 in words is "one hundred sixty-six billion, five hundred two million, fifteen thousand, six hundred two".