7161051621065 has 8 divisors (see below), whose sum is σ = 8593307885448. Its totient is φ = 5728810670080.

The previous prime is 7161051621047. The next prime is 7161051621121. The reversal of 7161051621065 is 5601261501617.

It can be written as a sum of positive squares in 4 ways, for example, as 2375947870921 + 4785103750144 = 1541411^2 + 2187488^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7161051621065 - 2¹⁸ = 7161051358921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2773112 + ... + 4691721.

It is an arithmetic number, because the mean of its divisors is an integer number (1074163485681).

Almost surely, 2^{7161051621065} is an apocalyptic number.

It is an amenable number.

7161051621065 is a deficient number, since it is larger than the sum of its proper divisors (1432256264383).

7161051621065 is a wasteful number, since it uses less digits than its factorization.

7161051621065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656699.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 7161051621065 in words is "seven trillion, one hundred sixty-one billion, fifty-one million, six hundred twenty-one thousand, sixty-five".