61153215077443 has 2 divisors, whose sum is σ = 61153215077444. Its totient is φ = 61153215077442.

The previous prime is 61153215077413. The next prime is 61153215077467. The reversal of 61153215077443 is 34477051235116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61153215077443 - 2¹⁷ = 61153214946371 is a prime.

It is not a weakly prime, because it can be changed into another prime (61153215077413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30576607538721 + 30576607538722.

It is an arithmetic number, because the mean of its divisors is an integer number (30576607538722).

Almost surely, 2^{61153215077443} is an apocalyptic number.

61153215077443 is a deficient number, since it is larger than the sum of its proper divisors (1).

61153215077443 is an equidigital number, since it uses as much as digits as its factorization.

61153215077443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 61153215077443 in words is "sixty-one trillion, one hundred fifty-three billion, two hundred fifteen million, seventy-seven thousand, four hundred forty-three".