3745320660 has 384 divisors, whose sum is σ = 13172544000. Its totient is φ = 877879296.

The previous prime is 3745320637. The next prime is 3745320661. The reversal of 3745320660 is 660235473.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3745320661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19011682 + ... + 19011878.

It is an arithmetic number, because the mean of its divisors is an integer number (34303500).

Almost surely, 2^3745320660 is an apocalyptic number.

3745320660 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 3745320660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6586272000).

3745320660 is an abundant number, since it is smaller than the sum of its proper divisors (9427223340).

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

3745320660 is a wasteful number, since it uses less digits than its factorization.

3745320660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 3745320660 is about 61199.0249922333. The cubic root of 3745320660 is about 1552.9697707879.

The spelling of 3745320660 in words is "three billion, seven hundred forty-five million, three hundred twenty thousand, six hundred sixty".