75220578345 has 16 divisors (see below), whose sum is σ = 131294100672. Its totient is φ = 36470583360.

The previous prime is 75220578287. The next prime is 75220578361. The reversal of 75220578345 is 54387502257.

It is not a de Polignac number, because 75220578345 - 2⁶ = 75220578281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75220578294 and 75220578303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227940982 + ... + 227941311.

It is an arithmetic number, because the mean of its divisors is an integer number (8205881292).

Almost surely, 2^75220578345 is an apocalyptic number.

It is an amenable number.

75220578345 is a deficient number, since it is larger than the sum of its proper divisors (56073522327).

75220578345 is a wasteful number, since it uses less digits than its factorization.

75220578345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455882312.

The product of its (nonzero) digits is 2352000, while the sum is 48.

The spelling of 75220578345 in words is "seventy-five billion, two hundred twenty million, five hundred seventy-eight thousand, three hundred forty-five".