66510610105053 has 16 divisors (see below), whose sum is σ = 93941436026880. Its totient is φ = 41712545688576.

The previous prime is 66510610105013. The next prime is 66510610105067. The reversal of 66510610105053 is 35050101601566.

It is not a de Polignac number, because 66510610105053 - 2⁹ = 66510610104541 is a prime.

It is a super-2 number, since 2×66510610105053² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66510610105013) 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, 306168925 + ... + 306386082.

It is an arithmetic number, because the mean of its divisors is an integer number (5871339751680).

Almost surely, 2^{66510610105053} is an apocalyptic number.

It is an amenable number.

66510610105053 is a deficient number, since it is larger than the sum of its proper divisors (27430825921827).

66510610105053 is a wasteful number, since it uses less digits than its factorization.

66510610105053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612557156.

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 66510610105053 in words is "sixty-six trillion, five hundred ten billion, six hundred ten million, one hundred five thousand, fifty-three".