66770641425312 has 192 divisors, whose sum is σ = 214642271088000. Its totient is φ = 20024934359040.

The previous prime is 66770641425277. The next prime is 66770641425329. The reversal of 66770641425312 is 21352414607766.

66770641425312 is a `hidden beast` number, since 6 + 6 + 7 + 7 + 0 + 64 + 1 + 42 + 531 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 35292187 + ... + 37135962.

It is an arithmetic number, because the mean of its divisors is an integer number (1117928495250).

Almost surely, 2^{66770641425312} is an apocalyptic number.

It is an amenable number.

66770641425312 is an abundant number, since it is smaller than the sum of its proper divisors (147871629662688).

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

66770641425312 is a wasteful number, since it uses less digits than its factorization.

66770641425312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72428276 (or 72428262 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 66770641425312 in words is "sixty-six trillion, seven hundred seventy billion, six hundred forty-one million, four hundred twenty-five thousand, three hundred twelve".