64180606620732 has 48 divisors (see below), whose sum is σ = 171160132550400. Its totient is φ = 18336046724352.

The previous prime is 64180606620727. The next prime is 64180606620761. The reversal of 64180606620732 is 23702660608146.

It is a happy number.

64180606620732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 25225998 + ... + 27653429.

It is an arithmetic number, because the mean of its divisors is an integer number (3565836094800).

Almost surely, 2^{64180606620732} is an apocalyptic number.

It is an amenable number.

64180606620732 is an abundant number, since it is smaller than the sum of its proper divisors (106979525929668).

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

64180606620732 is a wasteful number, since it uses less digits than its factorization.

64180606620732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52893890 (or 52893888 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 64180606620732 in words is "sixty-four trillion, one hundred eighty billion, six hundred six million, six hundred twenty thousand, seven hundred thirty-two".