64156818211 has 16 divisors (see below), whose sum is σ = 70157242368. Its totient is φ = 58405737600.

The previous prime is 64156818197. The next prime is 64156818221. The reversal of 64156818211 is 11281865146.

64156818211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64156818211 - 2¹³ = 64156810019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64156818221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057696 + ... + 1116706.

It is an arithmetic number, because the mean of its divisors is an integer number (4384827648).

Almost surely, 2^64156818211 is an apocalyptic number.

64156818211 is a deficient number, since it is larger than the sum of its proper divisors (6000424157).

64156818211 is a wasteful number, since it uses less digits than its factorization.

64156818211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61122.

The product of its digits is 92160, while the sum is 43.

The spelling of 64156818211 in words is "sixty-four billion, one hundred fifty-six million, eight hundred eighteen thousand, two hundred eleven".