1025073164161 has 4 divisors (see below), whose sum is σ = 1041877642324. Its totient is φ = 1008268686000.

The previous prime is 1025073164119. The next prime is 1025073164177. The reversal of 1025073164161 is 1614613705201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 125639055936 + 899434108225 = 354456^2 + 948385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025073164161 - 2⁹ = 1025073163649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025073164161.

It is not an unprimeable number, because it can be changed into a prime (1025073164461) 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 3 ways as a sum of consecutive naturals, for example, 8402238990 + ... + 8402239111.

It is an arithmetic number, because the mean of its divisors is an integer number (260469410581).

Almost surely, 2^{1025073164161} is an apocalyptic number.

It is an amenable number.

1025073164161 is a deficient number, since it is larger than the sum of its proper divisors (16804478163).

1025073164161 is an equidigital number, since it uses as much as digits as its factorization.

1025073164161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804478162.

The product of its (nonzero) digits is 30240, while the sum is 37.

Adding to 1025073164161 its reverse (1614613705201), we get a palindrome (2639686869362).

The spelling of 1025073164161 in words is "one trillion, twenty-five billion, seventy-three million, one hundred sixty-four thousand, one hundred sixty-one".