5651006561161 has 32 divisors (see below), whose sum is σ = 6477852358656. Its totient is φ = 4892304960000.

The previous prime is 5651006561153. The next prime is 5651006561273. The reversal of 5651006561161 is 1611656001565.

It is a cyclic number.

It is not a de Polignac number, because 5651006561161 - 2³ = 5651006561153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5651006541161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1362495 + ... + 3627451.

It is an arithmetic number, because the mean of its divisors is an integer number (202432886208).

Almost surely, 2^{5651006561161} is an apocalyptic number.

It is an amenable number.

5651006561161 is a deficient number, since it is larger than the sum of its proper divisors (826845797495).

5651006561161 is a wasteful number, since it uses less digits than its factorization.

5651006561161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265193.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 5651006561161 in words is "five trillion, six hundred fifty-one billion, six million, five hundred sixty-one thousand, one hundred sixty-one".