67722220756990 has 16 divisors (see below), whose sum is σ = 122581002937680. Its totient is φ = 26937553730560.

The previous prime is 67722220756969. The next prime is 67722220757029. The reversal of 67722220756990 is 9965702222776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18916819651 + ... + 18916823230.

It is an arithmetic number, because the mean of its divisors is an integer number (7661312683605).

Almost surely, 2^{67722220756990} is an apocalyptic number.

67722220756990 is a deficient number, since it is larger than the sum of its proper divisors (54858782180690).

67722220756990 is a wasteful number, since it uses less digits than its factorization.

67722220756990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37833643067.

The product of its (nonzero) digits is 80015040, while the sum is 64.

The spelling of 67722220756990 in words is "sixty-seven trillion, seven hundred twenty-two billion, two hundred twenty million, seven hundred fifty-six thousand, nine hundred ninety".