67020909956 has 96 divisors (see below), whose sum is σ = 166739150592. Its totient is φ = 22685552640.

The previous prime is 67020909953. The next prime is 67020909997. The reversal of 67020909956 is 65990902076.

It is a junction number, because it is equal to n+sod(n) for n = 67020909898 and 67020909907.

It is not an unprimeable number, because it can be changed into a prime (67020909953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424241 + ... + 560376.

It is an arithmetic number, because the mean of its divisors is an integer number (1736866152).

Almost surely, 2^67020909956 is an apocalyptic number.

It is an amenable number.

67020909956 is an abundant number, since it is smaller than the sum of its proper divisors (99718240636).

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

67020909956 is a wasteful number, since it uses less digits than its factorization.

67020909956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984669 (or 984667 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 53.

The spelling of 67020909956 in words is "sixty-seven billion, twenty million, nine hundred nine thousand, nine hundred fifty-six".