67245664192 has 56 divisors (see below), whose sum is σ = 152750560640. Its totient is φ = 28772893440.

The previous prime is 67245664169. The next prime is 67245664193. The reversal of 67245664192 is 29146654276.

67245664192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67245664193) 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, 156067 + ... + 398557.

Almost surely, 2^67245664192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67245664192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76375280320).

67245664192 is an abundant number, since it is smaller than the sum of its proper divisors (85504896448).

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

67245664192 is a wasteful number, since it uses less digits than its factorization.

67245664192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243129 (or 243119 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The spelling of 67245664192 in words is "sixty-seven billion, two hundred forty-five million, six hundred sixty-four thousand, one hundred ninety-two".