64061432532 has 36 divisors (see below), whose sum is σ = 162006638976. Its totient is φ = 21344108880.

The previous prime is 64061432531. The next prime is 64061432543. The reversal of 64061432532 is 23523416046.

64061432532 is a `hidden beast` number, since 6 + 4 + 0 + 614 + 3 + 2 + 5 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64061432531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323694 + ... + 482597.

It is an arithmetic number, because the mean of its divisors is an integer number (4500184416).

Almost surely, 2^64061432532 is an apocalyptic number.

It is an amenable number.

64061432532 is an abundant number, since it is smaller than the sum of its proper divisors (97945206444).

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

64061432532 is a wasteful number, since it uses less digits than its factorization.

64061432532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808508 (or 808503 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 64061432532 its reverse (23523416046), we get a palindrome (87584848578).

The spelling of 64061432532 in words is "sixty-four billion, sixty-one million, four hundred thirty-two thousand, five hundred thirty-two".