7255540242146 has 32 divisors (see below), whose sum is σ = 12525732000000. Its totient is φ = 3087615448512.

The previous prime is 7255540242143. The next prime is 7255540242163. The reversal of 7255540242146 is 6412420455527.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7255540242146.

It is not an unprimeable number, because it can be changed into a prime (7255540242143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5676020 + ... + 6835808.

It is an arithmetic number, because the mean of its divisors is an integer number (391429125000).

Almost surely, 2^{7255540242146} is an apocalyptic number.

7255540242146 is a deficient number, since it is larger than the sum of its proper divisors (5270191757854).

7255540242146 is a wasteful number, since it uses less digits than its factorization.

7255540242146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162946.

The product of its (nonzero) digits is 2688000, while the sum is 47.

The spelling of 7255540242146 in words is "seven trillion, two hundred fifty-five billion, five hundred forty million, two hundred forty-two thousand, one hundred forty-six".