6441667345936 has 15 divisors (see below), whose sum is σ = 12480750152623. Its totient is φ = 3220828596880.

The previous prime is 6441667345889. The next prime is 6441667345951. The reversal of 6441667345936 is 6395437661446.

The square root of 6441667345936 is 2538044.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9834921 + ... + 10469431.

Almost surely, 2^{6441667345936} is an apocalyptic number.

6441667345936 is the 2538044-th square number.

It is an amenable number.

6441667345936 is a deficient number, since it is larger than the sum of its proper divisors (6039082806687).

6441667345936 is an frugal number, since it uses more digits than its factorization.

6441667345936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269030 (or 634513 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 64.

Multiplying 6441667345936 by its sum of digits (64), we get a square (412266710139904 = 20304352²).

The spelling of 6441667345936 in words is "six trillion, four hundred forty-one billion, six hundred sixty-seven million, three hundred forty-five thousand, nine hundred thirty-six".