53868666666658 has 4 divisors (see below), whose sum is σ = 80802999999990. Its totient is φ = 26934333333328.

The previous prime is 53868666666631. The next prime is 53868666666677. The reversal of 53868666666658 is 85666666686835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42884725141449 + 10983941525209 = 6548643^2 + 3314203^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13467166666663 + ... + 13467166666666.

Almost surely, 2^{53868666666658} is an apocalyptic number.

53868666666658 is a deficient number, since it is larger than the sum of its proper divisors (26934333333332).

53868666666658 is a wasteful number, since it uses less digits than its factorization.

53868666666658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26934333333331.

The product of its digits is 64497254400, while the sum is 85.

The spelling of 53868666666658 in words is "fifty-three trillion, eight hundred sixty-eight billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred fifty-eight".