61165155463 has 2 divisors, whose sum is σ = 61165155464. Its totient is φ = 61165155462.

The previous prime is 61165155449. The next prime is 61165155481. The reversal of 61165155463 is 36455156116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61165155463 - 2⁹ = 61165154951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61165153463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30582577731 + 30582577732.

It is an arithmetic number, because the mean of its divisors is an integer number (30582577732).

Almost surely, 2^61165155463 is an apocalyptic number.

61165155463 is a deficient number, since it is larger than the sum of its proper divisors (1).

61165155463 is an equidigital number, since it uses as much as digits as its factorization.

61165155463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 43.

The spelling of 61165155463 in words is "sixty-one billion, one hundred sixty-five million, one hundred fifty-five thousand, four hundred sixty-three".