66056913099974 has 8 divisors (see below), whose sum is σ = 100066412914128. Its totient is φ = 32701442128600.

The previous prime is 66056913099893. The next prime is 66056913099997. The reversal of 66056913099974 is 47999031965066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163507210442 + ... + 163507210845.

It is an arithmetic number, because the mean of its divisors is an integer number (12508301614266).

Almost surely, 2^{66056913099974} is an apocalyptic number.

66056913099974 is a deficient number, since it is larger than the sum of its proper divisors (34009499814154).

66056913099974 is a wasteful number, since it uses less digits than its factorization.

66056913099974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327014421390.

The product of its (nonzero) digits is 595213920, while the sum is 74.

The spelling of 66056913099974 in words is "sixty-six trillion, fifty-six billion, nine hundred thirteen million, ninety-nine thousand, nine hundred seventy-four".