75215607161 has 2 divisors, whose sum is σ = 75215607162. Its totient is φ = 75215607160.

The previous prime is 75215607133. The next prime is 75215607167. The reversal of 75215607161 is 16170651257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63980667136 + 11234940025 = 252944^2 + 105995^2 .

It is a cyclic number.

It is not a de Polignac number, because 75215607161 - 2¹⁸ = 75215345017 is a prime.

It is not a weakly prime, because it can be changed into another prime (75215607167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37607803580 + 37607803581.

It is an arithmetic number, because the mean of its divisors is an integer number (37607803581).

Almost surely, 2^75215607161 is an apocalyptic number.

It is an amenable number.

75215607161 is a deficient number, since it is larger than the sum of its proper divisors (1).

75215607161 is an equidigital number, since it uses as much as digits as its factorization.

75215607161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 75215607161 in words is "seventy-five billion, two hundred fifteen million, six hundred seven thousand, one hundred sixty-one".