61667283499 has 2 divisors, whose sum is σ = 61667283500. Its totient is φ = 61667283498.

The previous prime is 61667283473. The next prime is 61667283523. The reversal of 61667283499 is 99438276616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61667283499 - 2⁷ = 61667283371 is a prime.

It is not a weakly prime, because it can be changed into another prime (61667283299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30833641749 + 30833641750.

It is an arithmetic number, because the mean of its divisors is an integer number (30833641750).

Almost surely, 2^61667283499 is an apocalyptic number.

61667283499 is a deficient number, since it is larger than the sum of its proper divisors (1).

61667283499 is an equidigital number, since it uses as much as digits as its factorization.

61667283499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 61.

The spelling of 61667283499 in words is "sixty-one billion, six hundred sixty-seven million, two hundred eighty-three thousand, four hundred ninety-nine".