156500506665106 has 4 divisors (see below), whose sum is σ = 234750759997662. Its totient is φ = 78250253332552.

The previous prime is 156500506665091. The next prime is 156500506665109. The reversal of 156500506665106 is 601566605005651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 115719395717025 + 40781110948081 = 10757295^2 + 6386009^2 .

It is not an unprimeable number, because it can be changed into a prime (156500506665109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39125126666275 + ... + 39125126666278.

Almost surely, 2^{156500506665106} is an apocalyptic number.

156500506665106 is a deficient number, since it is larger than the sum of its proper divisors (78250253332556).

156500506665106 is an equidigital number, since it uses as much as digits as its factorization.

156500506665106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78250253332555.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 156500506665106 in words is "one hundred fifty-six trillion, five hundred billion, five hundred six million, six hundred sixty-five thousand, one hundred six".