3621565080 has 768 divisors, whose sum is σ = 15397724160. Its totient is φ = 746496000.

The previous prime is 3621565067. The next prime is 3621565117. The reversal of 3621565080 is 805651263.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 35857030 + ... + 35857130.

It is an arithmetic number, because the mean of its divisors is an integer number (20049120).

Almost surely, 2^3621565080 is an apocalyptic number.

3621565080 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 3621565080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7698862080).

3621565080 is an abundant number, since it is smaller than the sum of its proper divisors (11776159080).

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

3621565080 is a wasteful number, since it uses less digits than its factorization.

3621565080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 3621565080 is about 60179.4406753669. The cubic root of 3621565080 is about 1535.6730566345.

It can be divided in two parts, 362156 and 5080, that added together give a square (367236 = 606²).

The spelling of 3621565080 in words is "three billion, six hundred twenty-one million, five hundred sixty-five thousand, eighty".