63955465698 has 64 divisors (see below), whose sum is σ = 135489024000. Its totient is φ = 20069832384.

The previous prime is 63955465669. The next prime is 63955465699. The reversal of 63955465698 is 89656455936.

It is not an unprimeable number, because it can be changed into a prime (63955465699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32316073 + ... + 32318051.

It is an arithmetic number, because the mean of its divisors is an integer number (2117016000).

Almost surely, 2^63955465698 is an apocalyptic number.

63955465698 is an abundant number, since it is smaller than the sum of its proper divisors (71533558302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63955465698 is a wasteful number, since it uses less digits than its factorization.

63955465698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639.

The product of its digits is 209952000, while the sum is 66.

The spelling of 63955465698 in words is "sixty-three billion, nine hundred fifty-five million, four hundred sixty-five thousand, six hundred ninety-eight".