3646955560 has 64 divisors (see below), whose sum is σ = 8483428800. Its totient is φ = 1410103296.

The previous prime is 3646955539. The next prime is 3646955563. The reversal of 3646955560 is 655596463.

It is a super-2 number, since 2×3646955560² = 26600569713229827200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3646955563) 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, 155911 + ... + 177769.

It is an arithmetic number, because the mean of its divisors is an integer number (132553575).

Almost surely, 2^3646955560 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 3646955560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4241714400).

3646955560 is an abundant number, since it is smaller than the sum of its proper divisors (4836473240).

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

3646955560 is a wasteful number, since it uses less digits than its factorization.

3646955560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22010 (or 22006 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 49.

The square root of 3646955560 is about 60390.0286471202. The cubic root of 3646955560 is about 1539.2535258957.

It can be divided in two parts, 36469 and 55560, that added together give a palindrome (92029).

The spelling of 3646955560 in words is "three billion, six hundred forty-six million, nine hundred fifty-five thousand, five hundred sixty".