615560261975441 has 2 divisors, whose sum is σ = 615560261975442. Its totient is φ = 615560261975440.

The previous prime is 615560261975431. The next prime is 615560261975531. The reversal of 615560261975441 is 144579162065516.

615560261975441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367611023044225 + 247949238931216 = 19173185^2 + 15746404^2 .

It is a cyclic number.

It is not a de Polignac number, because 615560261975441 - 2¹⁰ = 615560261974417 is a prime.

It is a super-2 number, since 2×615560261975441² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (615560261975431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307780130987720 + 307780130987721.

It is an arithmetic number, because the mean of its divisors is an integer number (307780130987721).

Almost surely, 2^{615560261975441} is an apocalyptic number.

It is an amenable number.

615560261975441 is a deficient number, since it is larger than the sum of its proper divisors (1).

615560261975441 is an equidigital number, since it uses as much as digits as its factorization.

615560261975441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432000, while the sum is 62.

The spelling of 615560261975441 in words is "six hundred fifteen trillion, five hundred sixty billion, two hundred sixty-one million, nine hundred seventy-five thousand, four hundred forty-one".