64206677088 has 72 divisors (see below), whose sum is σ = 190526354928. Its totient is φ = 20471692032.

The previous prime is 64206677039. The next prime is 64206677159. The reversal of 64206677088 is 88077660246.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4839895 + ... + 4853142.

It is an arithmetic number, because the mean of its divisors is an integer number (2646199374).

Almost surely, 2^64206677088 is an apocalyptic number.

It is an amenable number.

64206677088 is an abundant number, since it is smaller than the sum of its proper divisors (126319677840).

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

64206677088 is a wasteful number, since it uses less digits than its factorization.

64206677088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9693076 (or 9693065 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 64206677088 in words is "sixty-four billion, two hundred six million, six hundred seventy-seven thousand, eighty-eight".