7161065060021 has 8 divisors (see below), whose sum is σ = 7210449735000. Its totient is φ = 7111698036480.

The previous prime is 7161065060011. The next prime is 7161065060029. The reversal of 7161065060021 is 1200605601617.

It can be written as a sum of positive squares in 4 ways, for example, as 301060716100 + 6860004343921 = 548690^2 + 2619161^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7161065060021 - 2¹⁸ = 7161064797877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7161065060029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3598160 + ... + 5221961.

It is an arithmetic number, because the mean of its divisors is an integer number (901306216875).

Almost surely, 2^{7161065060021} is an apocalyptic number.

It is an amenable number.

7161065060021 is a deficient number, since it is larger than the sum of its proper divisors (49384674979).

7161065060021 is a wasteful number, since it uses less digits than its factorization.

7161065060021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8825719.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 7161065060021 in words is "seven trillion, one hundred sixty-one billion, sixty-five million, sixty thousand, twenty-one".