66117004414750 has 64 divisors (see below), whose sum is σ = 124463254316544. Its totient is φ = 26299029120000.

The previous prime is 66117004414729. The next prime is 66117004414781. The reversal of 66117004414750 is 5741440071166.

It is a self number, because there is not a number n which added to its sum of digits gives 66117004414750.

It is a congruent number.

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, 95742702 + ... + 96430798.

It is an arithmetic number, because the mean of its divisors is an integer number (1944738348696).

Almost surely, 2^{66117004414750} is an apocalyptic number.

66117004414750 is a deficient number, since it is larger than the sum of its proper divisors (58346249901794).

66117004414750 is a wasteful number, since it uses less digits than its factorization.

66117004414750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690262 (or 690252 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 66117004414750 in words is "sixty-six trillion, one hundred seventeen billion, four million, four hundred fourteen thousand, seven hundred fifty".