64734665122 has 24 divisors (see below), whose sum is σ = 102706381836. Its totient is φ = 30596534784.

The previous prime is 64734665089. The next prime is 64734665123. The reversal of 64734665122 is 22156643746.

64734665122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 64734116041 + 549081 = 254429^2 + 741^2 .

It is not an unprimeable number, because it can be changed into a prime (64734665123) 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, 231858 + ... + 428050.

Almost surely, 2^64734665122 is an apocalyptic number.

64734665122 is a deficient number, since it is larger than the sum of its proper divisors (37971716714).

64734665122 is a wasteful number, since it uses less digits than its factorization.

64734665122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196690 (or 196671 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The spelling of 64734665122 in words is "sixty-four billion, seven hundred thirty-four million, six hundred sixty-five thousand, one hundred twenty-two".