66460602646020 has 96 divisors (see below), whose sum is σ = 203280159237120. Its totient is φ = 16089976524160.

The previous prime is 66460602645967. The next prime is 66460602646033. The reversal of 66460602646020 is 2064620606466.

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, 67274010 + ... + 68254769.

It is an arithmetic number, because the mean of its divisors is an integer number (2117501658720).

Almost surely, 2^{66460602646020} is an apocalyptic number.

66460602646020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66460602646020 is an abundant number, since it is smaller than the sum of its proper divisors (136819556591100).

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

66460602646020 is a wasteful number, since it uses less digits than its factorization.

66460602646020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135529545 (or 135529543 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 66460602646020 in words is "sixty-six trillion, four hundred sixty billion, six hundred two million, six hundred forty-six thousand, twenty".