63667416654 has 144 divisors (see below), whose sum is σ = 150768858240. Its totient is φ = 19362823200.

The previous prime is 63667416587. The next prime is 63667416739. The reversal of 63667416654 is 45661476636.

63667416654 is a `hidden beast` number, since 6 + 366 + 74 + 166 + 54 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 63667416654.

It is a congruent number.

It is an unprimeable number.

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 in 71 ways as a sum of consecutive naturals, for example, 100898919 + ... + 100899549.

It is an arithmetic number, because the mean of its divisors is an integer number (1047005960).

Almost surely, 2^63667416654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63667416654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75384429120).

63667416654 is an abundant number, since it is smaller than the sum of its proper divisors (87101441586).

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

63667416654 is a wasteful number, since it uses less digits than its factorization.

63667416654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 993 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 63667416654 in words is "sixty-three billion, six hundred sixty-seven million, four hundred sixteen thousand, six hundred fifty-four".