66510610105052 has 24 divisors (see below), whose sum is σ = 116798858330112. Its totient is φ = 33139658606000.

The previous prime is 66510610105013. The next prime is 66510610105067. The reversal of 66510610105052 is 25050101601566.

It is a happy number.

It is a super-2 number, since 2×66510610105052² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66510610104997 and 66510610105015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17096024 + ... + 20622687.

It is an arithmetic number, because the mean of its divisors is an integer number (4866619097088).

Almost surely, 2^{66510610105052} is an apocalyptic number.

It is an amenable number.

66510610105052 is a deficient number, since it is larger than the sum of its proper divisors (50288248225060).

66510610105052 is a wasteful number, since it uses less digits than its factorization.

66510610105052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37720249 (or 37720247 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 66510610105052 in words is "sixty-six trillion, five hundred ten billion, six hundred ten million, one hundred five thousand, fifty-two".