67691669232 has 160 divisors (see below), whose sum is σ = 204835889664. Its totient is φ = 19033907200.

The previous prime is 67691669197. The next prime is 67691669237. The reversal of 67691669232 is 23296619676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67691669237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 584188 + ... + 690404.

Almost surely, 2^67691669232 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 67691669232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102417944832).

67691669232 is an abundant number, since it is smaller than the sum of its proper divisors (137144220432).

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

67691669232 is a wasteful number, since it uses less digits than its factorization.

67691669232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106327 (or 106321 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 57.

The spelling of 67691669232 in words is "sixty-seven billion, six hundred ninety-one million, six hundred sixty-nine thousand, two hundred thirty-two".