3666022252920 has 128 divisors (see below), whose sum is σ = 12228814080000. Its totient is φ = 976906742400.

The previous prime is 3666022252901. The next prime is 3666022252933. The reversal of 3666022252920 is 292522206663.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297745 + ... + 2724095.

It is an arithmetic number, because the mean of its divisors is an integer number (95537610000).

Almost surely, 2^{3666022252920} is an apocalyptic number.

3666022252920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3666022252920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6114407040000).

3666022252920 is an abundant number, since it is smaller than the sum of its proper divisors (8562791827080).

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

3666022252920 is a wasteful number, since it uses less digits than its factorization.

3666022252920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427770 (or 2427760 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 3666022252920 in words is "three trillion, six hundred sixty-six billion, twenty-two million, two hundred fifty-two thousand, nine hundred twenty".