64642204004 has 24 divisors (see below), whose sum is σ = 129934089600. Its totient is φ = 27564584256.

The previous prime is 64642203991. The next prime is 64642204037. The reversal of 64642204004 is 40040224646.

64642204004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64642204004² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5795057 + ... + 5806200.

It is an arithmetic number, because the mean of its divisors is an integer number (5413920400).

Almost surely, 2^64642204004 is an apocalyptic number.

It is an amenable number.

64642204004 is an abundant number, since it is smaller than the sum of its proper divisors (65291885596).

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

64642204004 is a wasteful number, since it uses less digits than its factorization.

64642204004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11601467 (or 11601465 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 64642204004 in words is "sixty-four billion, six hundred forty-two million, two hundred four thousand, four".