3635666240346 has 64 divisors (see below), whose sum is σ = 9234516648960. Its totient is φ = 1038640443120.

The previous prime is 3635666240341. The next prime is 3635666240351. The reversal of 3635666240346 is 6430426665363.

It is an interprime number because it is at equal distance from previous prime (3635666240341) and next prime (3635666240351).

It is a super-2 number, since 2×3635666240346² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3635666240292 and 3635666240301.

It is not an unprimeable number, because it can be changed into a prime (3635666240341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2703561 + ... + 3818451.

It is an arithmetic number, because the mean of its divisors is an integer number (144289322640).

Almost surely, 2^{3635666240346} is an apocalyptic number.

3635666240346 is an abundant number, since it is smaller than the sum of its proper divisors (5598850408614).

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

3635666240346 is a wasteful number, since it uses less digits than its factorization.

3635666240346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123536 (or 1123530 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 54.

The spelling of 3635666240346 in words is "three trillion, six hundred thirty-five billion, six hundred sixty-six million, two hundred forty thousand, three hundred forty-six".