7161404760721 has 16 divisors (see below), whose sum is σ = 7433665856640. Its totient is φ = 6890871536640.

The previous prime is 7161404760709. The next prime is 7161404760739. The reversal of 7161404760721 is 1270674041617.

It is a cyclic number.

It is not a de Polignac number, because 7161404760721 - 2¹⁹ = 7161404236433 is a prime.

It is a super-3 number, since 3×7161404760721³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7161404760751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9651825 + ... + 10367281.

It is an arithmetic number, because the mean of its divisors is an integer number (464604116040).

Almost surely, 2^{7161404760721} is an apocalyptic number.

It is an amenable number.

7161404760721 is a deficient number, since it is larger than the sum of its proper divisors (272261095919).

7161404760721 is a wasteful number, since it uses less digits than its factorization.

7161404760721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716664.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 7161404760721 in words is "seven trillion, one hundred sixty-one billion, four hundred four million, seven hundred sixty thousand, seven hundred twenty-one".