64994098996224 has 616 divisors, whose sum is σ = 202974297120000. Its totient is φ = 20766192943104.

The previous prime is 64994098996193. The next prime is 64994098996241. The reversal of 64994098996224 is 42269989049946.

64994098996224 is a `hidden beast` number, since 6 + 49 + 9 + 409 + 8 + 99 + 62 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3009114577 + ... + 3009136175.

Almost surely, 2^{64994098996224} is an apocalyptic number.

64994098996224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64994098996224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101487148560000).

64994098996224 is an abundant number, since it is smaller than the sum of its proper divisors (137980198123776).

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

64994098996224 is a wasteful number, since it uses less digits than its factorization.

64994098996224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21805 (or 21772 counting only the distinct ones).

The product of its (nonzero) digits is 4353564672, while the sum is 81.

The spelling of 64994098996224 in words is "sixty-four trillion, nine hundred ninety-four billion, ninety-eight million, nine hundred ninety-six thousand, two hundred twenty-four".