3655217464340 has 96 divisors (see below), whose sum is σ = 8755096442400. Its totient is φ = 1269877948416.

The previous prime is 3655217464331. The next prime is 3655217464343. The reversal of 3655217464340 is 434647125563.

It can be written as a sum of positive squares in 16 ways, for example, as 1694506199824 + 1960711264516 = 1301732^2 + 1400254^2 .

It is a super-2 number, since 2×3655217464340² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3655217464343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16122086 + ... + 16347234.

It is an arithmetic number, because the mean of its divisors is an integer number (91198921275).

Almost surely, 2^{3655217464340} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3655217464340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4377548221200).

3655217464340 is an abundant number, since it is smaller than the sum of its proper divisors (5099878978060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3655217464340 is a wasteful number, since it uses less digits than its factorization.

3655217464340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228861 (or 228859 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 50.

The spelling of 3655217464340 in words is "three trillion, six hundred fifty-five billion, two hundred seventeen million, four hundred sixty-four thousand, three hundred forty".