3655812356 has 48 divisors (see below), whose sum is σ = 7572009984. Its totient is φ = 1511860896.

The previous prime is 3655812319. The next prime is 3655812359. The reversal of 3655812356 is 6532185563.

It is not an unprimeable number, because it can be changed into a prime (3655812359) 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, 81641 + ... + 118223.

It is an arithmetic number, because the mean of its divisors is an integer number (157750208).

Almost surely, 2^3655812356 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 3655812356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3786004992).

3655812356 is an abundant number, since it is smaller than the sum of its proper divisors (3916197628).

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

3655812356 is a wasteful number, since it uses less digits than its factorization.

3655812356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36720 (or 36718 counting only the distinct ones).

The product of its digits is 648000, while the sum is 44.

The square root of 3655812356 is about 60463.3141334479. The cubic root of 3655812356 is about 1540.4985674207.

The spelling of 3655812356 in words is "three billion, six hundred fifty-five million, eight hundred twelve thousand, three hundred fifty-six".