66247401571224 has 64 divisors (see below), whose sum is σ = 165787940640000. Its totient is φ = 22059877530240.

The previous prime is 66247401571223. The next prime is 66247401571259. The reversal of 66247401571224 is 42217510474266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66247401571223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 764947077 + ... + 765033675.

It is an arithmetic number, because the mean of its divisors is an integer number (2590436572500).

Almost surely, 2^{66247401571224} is an apocalyptic number.

It is an amenable number.

66247401571224 is an abundant number, since it is smaller than the sum of its proper divisors (99540539068776).

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

66247401571224 is a wasteful number, since it uses less digits than its factorization.

66247401571224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118848 (or 118844 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 66247401571224 in words is "sixty-six trillion, two hundred forty-seven billion, four hundred one million, five hundred seventy-one thousand, two hundred twenty-four".