8019424664 has 16 divisors (see below), whose sum is σ = 15386106120. Its totient is φ = 3916463040.

The previous prime is 8019424631. The next prime is 8019424687. The reversal of 8019424664 is 4664249108.

It is a super-2 number, since 2×8019424664² (a number of 21 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, 11655797 + ... + 11656484.

Almost surely, 2^8019424664 is an apocalyptic number.

It is an amenable number.

8019424664 is a deficient number, since it is larger than the sum of its proper divisors (7366681456).

8019424664 is a wasteful number, since it uses less digits than its factorization.

8019424664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23312330 (or 23312326 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 8019424664 is about 89551.2404380866. The cubic root of 8019424664 is about 2001.6174136340.

The spelling of 8019424664 in words is "eight billion, nineteen million, four hundred twenty-four thousand, six hundred sixty-four".