66602115360 has 144 divisors (see below), whose sum is σ = 247941570240. Its totient is φ = 16145963520.

The previous prime is 66602115319. The next prime is 66602115389. The reversal of 66602115360 is 6351120666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2086500 + ... + 2118179.

It is an arithmetic number, because the mean of its divisors is an integer number (1721816460).

Almost surely, 2^66602115360 is an apocalyptic number.

66602115360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66602115360 is an abundant number, since it is smaller than the sum of its proper divisors (181339454880).

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

66602115360 is a wasteful number, since it uses less digits than its factorization.

66602115360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204711 (or 4204700 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 66602115360 in words is "sixty-six billion, six hundred two million, one hundred fifteen thousand, three hundred sixty".