67745657016 has 192 divisors, whose sum is σ = 202293262080. Its totient is φ = 21166272000.

The previous prime is 67745657009. The next prime is 67745657029. The reversal of 67745657016 is 61075654776.

67745657016 is a `hidden beast` number, since 6 + 7 + 7 + 4 + 56 + 570 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8290965 + ... + 8299131.

It is an arithmetic number, because the mean of its divisors is an integer number (1053610740).

Almost surely, 2^67745657016 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 67745657016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101146631040).

67745657016 is an abundant number, since it is smaller than the sum of its proper divisors (134547605064).

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

67745657016 is a wasteful number, since it uses less digits than its factorization.

67745657016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456 (or 8440 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

The spelling of 67745657016 in words is "sixty-seven billion, seven hundred forty-five million, six hundred fifty-seven thousand, sixteen".