61067390663 has 2 divisors, whose sum is σ = 61067390664. Its totient is φ = 61067390662.

The previous prime is 61067390569. The next prime is 61067390669. The reversal of 61067390663 is 36609376016.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61067390663 - 2²⁰ = 61066342087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61067390669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30533695331 + 30533695332.

It is an arithmetic number, because the mean of its divisors is an integer number (30533695332).

Almost surely, 2^61067390663 is an apocalyptic number.

61067390663 is a deficient number, since it is larger than the sum of its proper divisors (1).

61067390663 is an equidigital number, since it uses as much as digits as its factorization.

61067390663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 47.

The spelling of 61067390663 in words is "sixty-one billion, sixty-seven million, three hundred ninety thousand, six hundred sixty-three".