3663532572 has 96 divisors (see below), whose sum is σ = 10375142400. Its totient is φ = 982195200.

The previous prime is 3663532567. The next prime is 3663532577. The reversal of 3663532572 is 2752353663.

It is an interprime number because it is at equal distance from previous prime (3663532567) and next prime (3663532577).

It is a super-2 number, since 2×3663532572² = 26842941812209870368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663532577) 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, 494697 + ... + 502047.

It is an arithmetic number, because the mean of its divisors is an integer number (108074400).

Almost surely, 2^3663532572 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 3663532572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5187571200).

3663532572 is an abundant number, since it is smaller than the sum of its proper divisors (6711609828).

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

3663532572 is a wasteful number, since it uses less digits than its factorization.

3663532572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7731 (or 7729 counting only the distinct ones).

The product of its digits is 680400, while the sum is 42.

The square root of 3663532572 is about 60527.1226145767. The cubic root of 3663532572 is about 1541.5821952269.

The spelling of 3663532572 in words is "three billion, six hundred sixty-three million, five hundred thirty-two thousand, five hundred seventy-two".