3660520140 has 48 divisors (see below), whose sum is σ = 11388286560. Its totient is φ = 976138560.

The previous prime is 3660520109. The next prime is 3660520153. The reversal of 3660520140 is 410250663.

3660520140 is a `hidden beast` number, since 36 + 605 + 20 + 1 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3388831 + ... + 3389910.

It is an arithmetic number, because the mean of its divisors is an integer number (237255970).

Almost surely, 2^3660520140 is an apocalyptic number.

3660520140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3660520140 is an abundant number, since it is smaller than the sum of its proper divisors (7727766420).

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

3660520140 is a wasteful number, since it uses less digits than its factorization.

3660520140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778759 (or 6778751 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3660520140 is about 60502.2325207922. The cubic root of 3660520140 is about 1541.1595444216.

The spelling of 3660520140 in words is "three billion, six hundred sixty million, five hundred twenty thousand, one hundred forty".