66556156007614 has 32 divisors (see below), whose sum is σ = 123152796264960. Its totient is φ = 26269930828512.

The previous prime is 66556156007597. The next prime is 66556156007629. The reversal of 66556156007614 is 41670065165566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416427124 + ... + 416586919.

It is an arithmetic number, because the mean of its divisors is an integer number (3848524883280).

Almost surely, 2^{66556156007614} is an apocalyptic number.

66556156007614 is a deficient number, since it is larger than the sum of its proper divisors (56596640257346).

66556156007614 is a wasteful number, since it uses less digits than its factorization.

66556156007614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833014504.

The product of its (nonzero) digits is 27216000, while the sum is 58.

The spelling of 66556156007614 in words is "sixty-six trillion, five hundred fifty-six billion, one hundred fifty-six million, seven thousand, six hundred fourteen".