3359665377721 has 9 divisors (see below), whose sum is σ = 3512132830479. Its totient is φ = 3213552645336.

The previous prime is 3359665377623. The next prime is 3359665377749. The reversal of 3359665377721 is 1277735669533.

The square root of 3359665377721 is 1832939.

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

It can be written as a sum of positive squares in only one way, i.e., 3331227277225 + 28438100496 = 1825165^2 + 168636^2 .

It is not a de Polignac number, because 3359665377721 - 2⁹ = 3359665377209 is a prime.

It is a super-2 number, since 2×3359665377721² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3359665377521) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42117751 + ... + 42197443.

Almost surely, 2^{3359665377721} is an apocalyptic number.

3359665377721 is the 1832939-th square number.

3359665377721 is the 916470-th centered octagonal number.

It is an amenable number.

3359665377721 is a deficient number, since it is larger than the sum of its proper divisors (152467452758).

3359665377721 is an frugal number, since it uses more digits than its factorization.

3359665377721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159432 (or 79716 counting only the distinct ones).

The product of its digits is 150028200, while the sum is 64.

Multiplying 3359665377721 by its sum of digits (64), we get a square (215018584174144 = 14663512²).

The spelling of 3359665377721 in words is "three trillion, three hundred fifty-nine billion, six hundred sixty-five million, three hundred seventy-seven thousand, seven hundred twenty-one".