67801943016 has 24 divisors (see below), whose sum is σ = 183630262530. Its totient is φ = 22600647648.

The previous prime is 67801942993. The next prime is 67801943021. The reversal of 67801943016 is 61034910876.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41839066116 + 25962876900 = 204546^2 + 161130^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×67801943016² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470846755 + ... + 470846898.

Almost surely, 2^67801943016 is an apocalyptic number.

It is an amenable number.

67801943016 is an abundant number, since it is smaller than the sum of its proper divisors (115828319514).

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

67801943016 is a wasteful number, since it uses less digits than its factorization.

67801943016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941693665 (or 941693658 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 67801943016 in words is "sixty-seven billion, eight hundred one million, nine hundred forty-three thousand, sixteen".