6532980660 has 72 divisors (see below), whose sum is σ = 20982406536. Its totient is φ = 1639649280.

The previous prime is 6532980659. The next prime is 6532980661. The reversal of 6532980660 is 660892356.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6532980659) and next prime (6532980661).

It can be written as a sum of positive squares in 4 ways, for example, as 143856036 + 6389124624 = 11994^2 + 79932^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6532980661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1064421 + ... + 1070540.

It is an arithmetic number, because the mean of its divisors is an integer number (291422313).

Almost surely, 2^6532980660 is an apocalyptic number.

6532980660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6532980660 is an abundant number, since it is smaller than the sum of its proper divisors (14449425876).

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

6532980660 is a wasteful number, since it uses less digits than its factorization.

6532980660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134993 (or 2134988 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 6532980660 is about 80826.8560566350. The cubic root of 6532980660 is about 1869.4066826185.

The spelling of 6532980660 in words is "six billion, five hundred thirty-two million, nine hundred eighty thousand, six hundred sixty".