66696768348 has 48 divisors (see below), whose sum is σ = 181994292480. Its totient is φ = 18613050624.

The previous prime is 66696768337. The next prime is 66696768371. The reversal of 66696768348 is 84386769666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9229053 + ... + 9236276.

It is an arithmetic number, because the mean of its divisors is an integer number (3791547760).

Almost surely, 2^66696768348 is an apocalyptic number.

It is an amenable number.

66696768348 is an abundant number, since it is smaller than the sum of its proper divisors (115297524132).

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

66696768348 is a wasteful number, since it uses less digits than its factorization.

66696768348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18465386 (or 18465384 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 69.

The spelling of 66696768348 in words is "sixty-six billion, six hundred ninety-six million, seven hundred sixty-eight thousand, three hundred forty-eight".