66075253258146 has 64 divisors (see below), whose sum is σ = 144375256811520. Its totient is φ = 19993493136960.

The previous prime is 66075253258097. The next prime is 66075253258169. The reversal of 66075253258146 is 64185235257066.

It is a self number, because there is not a number n which added to its sum of digits gives 66075253258146.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 771891420 + ... + 771977016.

It is an arithmetic number, because the mean of its divisors is an integer number (2255863387680).

Almost surely, 2^{66075253258146} is an apocalyptic number.

66075253258146 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66075253258146 is an abundant number, since it is smaller than the sum of its proper divisors (78300003553374).

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

66075253258146 is a wasteful number, since it uses less digits than its factorization.

66075253258146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102599.

The product of its (nonzero) digits is 72576000, while the sum is 60.

The spelling of 66075253258146 in words is "sixty-six trillion, seventy-five billion, two hundred fifty-three million, two hundred fifty-eight thousand, one hundred forty-six".