156665106606 has 16 divisors (see below), whose sum is σ = 313371810000. Its totient is φ = 52214769408.

The previous prime is 156665106589. The next prime is 156665106617. The reversal of 156665106606 is 606601566651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684131 + ... + 1774718.

It is an arithmetic number, because the mean of its divisors is an integer number (19585738125).

Almost surely, 2^156665106606 is an apocalyptic number.

156665106606 is an abundant number, since it is smaller than the sum of its proper divisors (156706703394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156665106606 is a wasteful number, since it uses less digits than its factorization.

156665106606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466403.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 156665106606 in words is "one hundred fifty-six billion, six hundred sixty-five million, one hundred six thousand, six hundred six".