66518113346246 has 64 divisors (see below), whose sum is σ = 109059665077440. Its totient is φ = 30308872089600.

The previous prime is 66518113346227. The next prime is 66518113346261. The reversal of 66518113346246 is 64264331181566.

It is a super-3 number, since 3×66518113346246³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66518113346191 and 66518113346200.

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, 55279370 + ... + 56469858.

It is an arithmetic number, because the mean of its divisors is an integer number (1704057266835).

Almost surely, 2^{66518113346246} is an apocalyptic number.

66518113346246 is a deficient number, since it is larger than the sum of its proper divisors (42541551731194).

66518113346246 is a wasteful number, since it uses less digits than its factorization.

66518113346246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190969.

The product of its digits is 14929920, while the sum is 56.

The spelling of 66518113346246 in words is "sixty-six trillion, five hundred eighteen billion, one hundred thirteen million, three hundred forty-six thousand, two hundred forty-six".