63216660619 has 8 divisors (see below), whose sum is σ = 73722053600. Its totient is φ = 54185708808.

The previous prime is 63216660613. The next prime is 63216660641. The reversal of 63216660619 is 91606661236.

It is not a de Polignac number, because 63216660619 - 2⁷ = 63216660491 is a prime.

It is a super-2 number, since 2×63216660619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63216660613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92152224 + ... + 92152909.

It is an arithmetic number, because the mean of its divisors is an integer number (9215256700).

Almost surely, 2^63216660619 is an apocalyptic number.

63216660619 is a deficient number, since it is larger than the sum of its proper divisors (10505392981).

63216660619 is an equidigital number, since it uses as much as digits as its factorization.

63216660619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184305154 (or 184305140 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 63216660619 in words is "sixty-three billion, two hundred sixteen million, six hundred sixty thousand, six hundred nineteen".