156866122 has 16 divisors (see below), whose sum is σ = 272702592. Its totient is φ = 66281040.

The previous prime is 156866117. The next prime is 156866131. The reversal of 156866122 is 221668651.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77913 + ... + 79900.

It is an arithmetic number, because the mean of its divisors is an integer number (17043912).

Almost surely, 2^156866122 is an apocalyptic number.

156866122 is a deficient number, since it is larger than the sum of its proper divisors (115836470).

156866122 is a wasteful number, since it uses less digits than its factorization.

156866122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157893.

The product of its digits is 34560, while the sum is 37.

The square root of 156866122 is about 12524.6206329773. The cubic root of 156866122 is about 539.3156878163.

The spelling of 156866122 in words is "one hundred fifty-six million, eight hundred sixty-six thousand, one hundred twenty-two".