156828472505 has 32 divisors (see below), whose sum is σ = 204710146560. Its totient is φ = 114857395200.

The previous prime is 156828472501. The next prime is 156828472547. The reversal of 156828472505 is 505274828651.

It is a happy number.

It is not a de Polignac number, because 156828472505 - 2² = 156828472501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156828472501) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 16824236 + ... + 16833554.

It is an arithmetic number, because the mean of its divisors is an integer number (6397192080).

Almost surely, 2^156828472505 is an apocalyptic number.

It is an amenable number.

156828472505 is a deficient number, since it is larger than the sum of its proper divisors (47881674055).

156828472505 is a wasteful number, since it uses less digits than its factorization.

156828472505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14729.

The product of its (nonzero) digits is 5376000, while the sum is 53.

The spelling of 156828472505 in words is "one hundred fifty-six billion, eight hundred twenty-eight million, four hundred seventy-two thousand, five hundred five".