64263221158 has 16 divisors (see below), whose sum is σ = 98907088896. Its totient is φ = 31296749760.

The previous prime is 64263221137. The next prime is 64263221167. The reversal of 64263221158 is 85112236246.

It is a self number, because there is not a number n which added to its sum of digits gives 64263221158.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588966 + ... + 689497.

It is an arithmetic number, because the mean of its divisors is an integer number (6181693056).

Almost surely, 2^64263221158 is an apocalyptic number.

64263221158 is a deficient number, since it is larger than the sum of its proper divisors (34643867738).

64263221158 is a wasteful number, since it uses less digits than its factorization.

64263221158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279119.

The product of its digits is 138240, while the sum is 40.

The spelling of 64263221158 in words is "sixty-four billion, two hundred sixty-three million, two hundred twenty-one thousand, one hundred fifty-eight".