64653421916106 has 40 divisors (see below), whose sum is σ = 144922514831424. Its totient is φ = 21543560062920.

The previous prime is 64653421916063. The next prime is 64653421916131. The reversal of 64653421916106 is 60161912435646.

64653421916106 is a `hidden beast` number, since 6 + 4 + 6 + 5 + 3 + 4 + 2 + 19 + 1 + 610 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69728530 + ... + 70649661.

Almost surely, 2^{64653421916106} is an apocalyptic number.

64653421916106 is an abundant number, since it is smaller than the sum of its proper divisors (80269092915318).

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

64653421916106 is a wasteful number, since it uses less digits than its factorization.

64653421916106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140381048 (or 140381039 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 64653421916106 in words is "sixty-four trillion, six hundred fifty-three billion, four hundred twenty-one million, nine hundred sixteen thousand, one hundred six".