75345055565 has 32 divisors (see below), whose sum is σ = 97724188800. Its totient is φ = 55436832000.

The previous prime is 75345055559. The next prime is 75345055573. The reversal of 75345055565 is 56555054357.

It is not a de Polignac number, because 75345055565 - 2¹⁸ = 75344793421 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 33470690 + ... + 33472940.

It is an arithmetic number, because the mean of its divisors is an integer number (3053880900).

Almost surely, 2^75345055565 is an apocalyptic number.

It is an amenable number.

75345055565 is a deficient number, since it is larger than the sum of its proper divisors (22379133235).

75345055565 is a wasteful number, since it uses less digits than its factorization.

75345055565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917.

The product of its (nonzero) digits is 7875000, while the sum is 50.

The spelling of 75345055565 in words is "seventy-five billion, three hundred forty-five million, fifty-five thousand, five hundred sixty-five".