40320755067 has 4 divisors (see below), whose sum is σ = 53761006760. Its totient is φ = 26880503376.

The previous prime is 40320755063. The next prime is 40320755081. The reversal of 40320755067 is 76055702304.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40320755067 - 2² = 40320755063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40320755063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6720125842 + ... + 6720125847.

It is an arithmetic number, because the mean of its divisors is an integer number (13440251690).

Almost surely, 2^40320755067 is an apocalyptic number.

40320755067 is a deficient number, since it is larger than the sum of its proper divisors (13440251693).

40320755067 is a wasteful number, since it uses less digits than its factorization.

40320755067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440251692.

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 40320755067 in words is "forty billion, three hundred twenty million, seven hundred fifty-five thousand, sixty-seven".