4221646415768 has 16 divisors (see below), whose sum is σ = 8381209796280. Its totient is φ = 1986657136768.

The previous prime is 4221646415759. The next prime is 4221646415797. The reversal of 4221646415768 is 8675146461224.

It is a super-2 number, since 2×4221646415768² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15520758746 + ... + 15520759017.

Almost surely, 2^{4221646415768} is an apocalyptic number.

It is an amenable number.

4221646415768 is a deficient number, since it is larger than the sum of its proper divisors (4159563380512).

4221646415768 is a wasteful number, since it uses less digits than its factorization.

4221646415768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31041517786 (or 31041517782 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 56.

The spelling of 4221646415768 in words is "four trillion, two hundred twenty-one billion, six hundred forty-six million, four hundred fifteen thousand, seven hundred sixty-eight".