3665677843216 has 45 divisors (see below), whose sum is σ = 7122861209919. Its totient is φ = 1827535490688.

The previous prime is 3665677843193. The next prime is 3665677843237. The reversal of 3665677843216 is 6123487765663.

The square root of 3665677843216 is 1914596.

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

It can be written as a sum of positive squares in 4 ways, for example, as 444083628816 + 3221594214400 = 666396^2 + 1794880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5000924386 + ... + 5000925118.

Almost surely, 2^{3665677843216} is an apocalyptic number.

3665677843216 is the 1914596-th square number.

It is an amenable number.

3665677843216 is a deficient number, since it is larger than the sum of its proper divisors (3457183366703).

3665677843216 is an frugal number, since it uses more digits than its factorization.

3665677843216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 1388 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 64.

Multiplying 3665677843216 by its sum of digits (64), we get a square (234603381965824 = 15316768²).

The spelling of 3665677843216 in words is "three trillion, six hundred sixty-five billion, six hundred seventy-seven million, eight hundred forty-three thousand, two hundred sixteen".