64156828155 has 16 divisors (see below), whose sum is σ = 117315343104. Its totient is φ = 29328835680.

The previous prime is 64156828147. The next prime is 64156828157. The reversal of 64156828155 is 55182865146.

It is not a de Polignac number, because 64156828155 - 2³ = 64156828147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64156828098 and 64156828107.

It is not an unprimeable number, because it can be changed into a prime (64156828157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305508601 + ... + 305508810.

It is an arithmetic number, because the mean of its divisors is an integer number (7332208944).

Almost surely, 2^64156828155 is an apocalyptic number.

64156828155 is a deficient number, since it is larger than the sum of its proper divisors (53158514949).

64156828155 is a wasteful number, since it uses less digits than its factorization.

64156828155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611017426.

The product of its digits is 2304000, while the sum is 51.

The spelling of 64156828155 in words is "sixty-four billion, one hundred fifty-six million, eight hundred twenty-eight thousand, one hundred fifty-five".