64120261604232 has 32 divisors (see below), whose sum is σ = 160400034550080. Its totient is φ = 21360169796160.

The previous prime is 64120261604227. The next prime is 64120261604237. The reversal of 64120261604232 is 23240616202146.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64120261604227) and next prime (64120261604237).

It is a super-2 number, since 2×64120261604232² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64120261604237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828131644 + ... + 828209067.

It is an arithmetic number, because the mean of its divisors is an integer number (5012501079690).

Almost surely, 2^{64120261604232} is an apocalyptic number.

It is an amenable number.

64120261604232 is an abundant number, since it is smaller than the sum of its proper divisors (96279772945848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64120261604232 is a wasteful number, since it uses less digits than its factorization.

64120261604232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656342333 (or 1656342329 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

Adding to 64120261604232 its reverse (23240616202146), we get a palindrome (87360877806378).

The spelling of 64120261604232 in words is "sixty-four trillion, one hundred twenty billion, two hundred sixty-one million, six hundred four thousand, two hundred thirty-two".