61066650106015 has 16 divisors (see below), whose sum is σ = 74312549167680. Its totient is φ = 48164949181440.

The previous prime is 61066650105977. The next prime is 61066650106057. The reversal of 61066650106015 is 51060105666016.

It is not a de Polignac number, because 61066650106015 - 2⁴³ = 52270557083807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70901737 + ... + 71757853.

It is an arithmetic number, because the mean of its divisors is an integer number (4644534322980).

Almost surely, 2^{61066650106015} is an apocalyptic number.

61066650106015 is a deficient number, since it is larger than the sum of its proper divisors (13245899061665).

61066650106015 is a wasteful number, since it uses less digits than its factorization.

61066650106015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057122.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 61066650106015 in words is "sixty-one trillion, sixty-six billion, six hundred fifty million, one hundred six thousand, fifteen".