63117664415 has 8 divisors (see below), whose sum is σ = 81567443328. Its totient is φ = 46609967520.

The previous prime is 63117664411. The next prime is 63117664427. The reversal of 63117664415 is 51446671136.

It is a happy number.

63117664415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63117664415 - 2² = 63117664411 is a prime.

It is a super-2 number, since 2×63117664415² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63117664411) 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, 485520431 + ... + 485520560.

It is an arithmetic number, because the mean of its divisors is an integer number (10195930416).

Almost surely, 2^63117664415 is an apocalyptic number.

63117664415 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

63117664415 is a deficient number, since it is larger than the sum of its proper divisors (18449778913).

63117664415 is a wasteful number, since it uses less digits than its factorization.

63117664415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971041009.

The product of its digits is 362880, while the sum is 44.

The spelling of 63117664415 in words is "sixty-three billion, one hundred seventeen million, six hundred sixty-four thousand, four hundred fifteen".