64220159513 has 4 divisors (see below), whose sum is σ = 64220788788. Its totient is φ = 64219530240.

The previous prime is 64220159447. The next prime is 64220159611. The reversal of 64220159513 is 31595102246.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 57122434009 + 7097725504 = 239003^2 + 84248^2 .

It is a cyclic number.

It is not a de Polignac number, because 64220159513 - 2¹⁴ = 64220143129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64220156513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122408 + ... + 378713.

It is an arithmetic number, because the mean of its divisors is an integer number (16055197197).

Almost surely, 2^64220159513 is an apocalyptic number.

It is an amenable number.

64220159513 is a deficient number, since it is larger than the sum of its proper divisors (629275).

64220159513 is a wasteful number, since it uses less digits than its factorization.

64220159513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629274.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 64220159513 in words is "sixty-four billion, two hundred twenty million, one hundred fifty-nine thousand, five hundred thirteen".