67070707221 has 8 divisors (see below), whose sum is σ = 102202982464. Its totient is φ = 38326118400.

The previous prime is 67070707217. The next prime is 67070707243. The reversal of 67070707221 is 12270707076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67070707221 - 2² = 67070707217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67070707221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67070707211) 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, 1596921580 + ... + 1596921621.

It is an arithmetic number, because the mean of its divisors is an integer number (12775372808).

Almost surely, 2^67070707221 is an apocalyptic number.

It is an amenable number.

67070707221 is a deficient number, since it is larger than the sum of its proper divisors (35132275243).

67070707221 is a wasteful number, since it uses less digits than its factorization.

67070707221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193843211.

The product of its (nonzero) digits is 57624, while the sum is 39.

The spelling of 67070707221 in words is "sixty-seven billion, seventy million, seven hundred seven thousand, two hundred twenty-one".