2051401161577 has 2 divisors, whose sum is σ = 2051401161578. Its totient is φ = 2051401161576.

The previous prime is 2051401161533. The next prime is 2051401161613. The reversal of 2051401161577 is 7751611041502.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1395845368681 + 655555792896 = 1181459^2 + 809664^2 .

It is a cyclic number.

It is not a de Polignac number, because 2051401161577 - 2²³ = 2051392772969 is a prime.

It is a super-2 number, since 2×2051401161577² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2051401161077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025700580788 + 1025700580789.

It is an arithmetic number, because the mean of its divisors is an integer number (1025700580789).

Almost surely, 2^{2051401161577} is an apocalyptic number.

It is an amenable number.

2051401161577 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051401161577 is an equidigital number, since it uses as much as digits as its factorization.

2051401161577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 40.

The spelling of 2051401161577 in words is "two trillion, fifty-one billion, four hundred one million, one hundred sixty-one thousand, five hundred seventy-seven".