64077622160 has 40 divisors (see below), whose sum is σ = 149201964600. Its totient is φ = 25592942592.

The previous prime is 64077622159. The next prime is 64077622163. The reversal of 64077622160 is 6122677046.

It can be written as a sum of positive squares in 4 ways, for example, as 8647512064 + 55430110096 = 92992^2 + 235436^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (64077622163) 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, 541235 + ... + 648914.

It is an arithmetic number, because the mean of its divisors is an integer number (3730049115).

Almost surely, 2^64077622160 is an apocalyptic number.

It is an amenable number.

64077622160 is an abundant number, since it is smaller than the sum of its proper divisors (85124342440).

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

64077622160 is a wasteful number, since it uses less digits than its factorization.

64077622160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190835 (or 1190829 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 64077622160 in words is "sixty-four billion, seventy-seven million, six hundred twenty-two thousand, one hundred sixty".