66056425512620 has 96 divisors (see below), whose sum is σ = 140636279766528. Its totient is φ = 26059469732352.

The previous prime is 66056425512617. The next prime is 66056425512641. The reversal of 66056425512620 is 2621552465066.

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, 1111713152 + ... + 1111772568.

It is an arithmetic number, because the mean of its divisors is an integer number (1464961247568).

Almost surely, 2^{66056425512620} is an apocalyptic number.

It is an amenable number.

66056425512620 is an abundant number, since it is smaller than the sum of its proper divisors (74579854253908).

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

66056425512620 is a wasteful number, since it uses less digits than its factorization.

66056425512620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61719 (or 61717 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

Adding to 66056425512620 its reverse (2621552465066), we get a palindrome (68677977977686).

The spelling of 66056425512620 in words is "sixty-six trillion, fifty-six billion, four hundred twenty-five million, five hundred twelve thousand, six hundred twenty".