66514700050256 has 40 divisors (see below), whose sum is σ = 133578584768640. Its totient is φ = 32063929691904.

The previous prime is 66514700050147. The next prime is 66514700050259. The reversal of 66514700050256 is 65205000741566.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 66514700050256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66514700050259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660027221 + ... + 660127988.

It is an arithmetic number, because the mean of its divisors is an integer number (3339464619216).

Almost surely, 2^{66514700050256} is an apocalyptic number.

It is an amenable number.

66514700050256 is an abundant number, since it is smaller than the sum of its proper divisors (67063884718384).

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

66514700050256 is a wasteful number, since it uses less digits than its factorization.

66514700050256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320155331 (or 1320155325 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 66514700050256 in words is "sixty-six trillion, five hundred fourteen billion, seven hundred million, fifty thousand, two hundred fifty-six".