2261575429961 has 2 divisors, whose sum is σ = 2261575429962. Its totient is φ = 2261575429960.

The previous prime is 2261575429913. The next prime is 2261575430021. The reversal of 2261575429961 is 1699245751622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1699946592400 + 561628837561 = 1303820^2 + 749419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261575429961 is a prime.

It is a super-2 number, since 2×2261575429961² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261575429961.

It is not a weakly prime, because it can be changed into another prime (2261575429901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130787714980 + 1130787714981.

It is an arithmetic number, because the mean of its divisors is an integer number (1130787714981).

Almost surely, 2^{2261575429961} is an apocalyptic number.

It is an amenable number.

2261575429961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261575429961 is an equidigital number, since it uses as much as digits as its factorization.

2261575429961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 59.

The spelling of 2261575429961 in words is "two trillion, two hundred sixty-one billion, five hundred seventy-five million, four hundred twenty-nine thousand, nine hundred sixty-one".