3597665543321 has 16 divisors (see below), whose sum is σ = 3773172282768. Its totient is φ = 3427177804800.

The previous prime is 3597665543287. The next prime is 3597665543333. The reversal of 3597665543321 is 1233455667953.

It can be written as a sum of positive squares in 8 ways, for example, as 1534811265625 + 2062854277696 = 1238875^2 + 1436264^2 .

It is a cyclic number.

It is not a de Polignac number, because 3597665543321 - 2²² = 3597661349017 is a prime.

It is a super-2 number, since 2×3597665543321² (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 (3597665543371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4907330 + ... + 5592603.

It is an arithmetic number, because the mean of its divisors is an integer number (235823267673).

Almost surely, 2^{3597665543321} is an apocalyptic number.

It is an amenable number.

3597665543321 is a deficient number, since it is larger than the sum of its proper divisors (175506739447).

3597665543321 is a wasteful number, since it uses less digits than its factorization.

3597665543321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500172.

The product of its digits is 61236000, while the sum is 59.

The spelling of 3597665543321 in words is "three trillion, five hundred ninety-seven billion, six hundred sixty-five million, five hundred forty-three thousand, three hundred twenty-one".