156017728156 has 6 divisors (see below), whose sum is σ = 273031024280. Its totient is φ = 78008864076.

The previous prime is 156017728133. The next prime is 156017728189. The reversal of 156017728156 is 651827710651.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19502216016 + ... + 19502216023.

Almost surely, 2^156017728156 is an apocalyptic number.

It is an amenable number.

156017728156 is a deficient number, since it is larger than the sum of its proper divisors (117013296124).

156017728156 is a wasteful number, since it uses less digits than its factorization.

156017728156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39004432043 (or 39004432041 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 156017728156 in words is "one hundred fifty-six billion, seventeen million, seven hundred twenty-eight thousand, one hundred fifty-six".