156100666661006 has 4 divisors (see below), whose sum is σ = 234150999991512. Its totient is φ = 78050333330502.

The previous prime is 156100666661003. The next prime is 156100666661047. The reversal of 156100666661006 is 600166666001651.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156100666661003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39025166665250 + ... + 39025166665253.

It is an arithmetic number, because the mean of its divisors is an integer number (58537749997878).

Almost surely, 2^{156100666661006} is an apocalyptic number.

156100666661006 is a deficient number, since it is larger than the sum of its proper divisors (78050333330506).

156100666661006 is an equidigital number, since it uses as much as digits as its factorization.

156100666661006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78050333330505.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 156100666661006 in words is "one hundred fifty-six trillion, one hundred billion, six hundred sixty-six million, six hundred sixty-one thousand, six".