66878747300 has 36 divisors (see below), whose sum is σ = 150131263380. Its totient is φ = 25829032320.

The previous prime is 66878747281. The next prime is 66878747393. The reversal of 66878747300 is 374787866.

It can be written as a sum of positive squares in 6 ways, for example, as 649636 + 66878097664 = 806^2 + 258608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11527919 + ... + 11533718.

Almost surely, 2^66878747300 is an apocalyptic number.

It is an amenable number.

66878747300 is an abundant number, since it is smaller than the sum of its proper divisors (83252516080).

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

66878747300 is a wasteful number, since it uses less digits than its factorization.

66878747300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23061680 (or 23061673 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 56.

The spelling of 66878747300 in words is "sixty-six billion, eight hundred seventy-eight million, seven hundred forty-seven thousand, three hundred".