64302029920 has 48 divisors (see below), whose sum is σ = 153307289520. Its totient is φ = 25484834304.

The previous prime is 64302029917. The next prime is 64302029921. The reversal of 64302029920 is 2992020346.

64302029920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64302029920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64302029921) 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, 1826082 + ... + 1860961.

It is an arithmetic number, because the mean of its divisors is an integer number (3193901865).

Almost surely, 2^64302029920 is an apocalyptic number.

It is an amenable number.

64302029920 is an abundant number, since it is smaller than the sum of its proper divisors (89005259600).

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

64302029920 is a wasteful number, since it uses less digits than its factorization.

64302029920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687167 (or 3687159 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 64302029920 in words is "sixty-four billion, three hundred two million, twenty-nine thousand, nine hundred twenty".