66513352 has 16 divisors (see below), whose sum is σ = 128736000. Its totient is φ = 32183760.

The previous prime is 66513347. The next prime is 66513361. The reversal of 66513352 is 25331566.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133852 + ... + 134347.

It is an arithmetic number, because the mean of its divisors is an integer number (8046000).

Almost surely, 2^66513352 is an apocalyptic number.

66513352 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

66513352 is a deficient number, since it is larger than the sum of its proper divisors (62222648).

66513352 is a wasteful number, since it uses less digits than its factorization.

66513352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268236 (or 268232 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 66513352 is about 8155.5718377070. The cubic root of 66513352 is about 405.1690642020.

The spelling of 66513352 in words is "sixty-six million, five hundred thirteen thousand, three hundred fifty-two".