56667351742785 has 24 divisors (see below), whose sum is σ = 112255325357760. Its totient is φ = 25905075082272.

The previous prime is 56667351742769. The next prime is 56667351742801. The reversal of 56667351742785 is 58724715376665.

It is an interprime number because it is at equal distance from previous prime (56667351742769) and next prime (56667351742801).

It is not a de Polignac number, because 56667351742785 - 2⁴ = 56667351742769 is a prime.

It is a super-2 number, since 2×56667351742785² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89948177055 + ... + 89948177684.

It is an arithmetic number, because the mean of its divisors is an integer number (4677305223240).

Almost surely, 2^{56667351742785} is an apocalyptic number.

It is an amenable number.

56667351742785 is a deficient number, since it is larger than the sum of its proper divisors (55587973614975).

56667351742785 is a wasteful number, since it uses less digits than its factorization.

56667351742785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179896354757 (or 179896354754 counting only the distinct ones).

The product of its digits is 1778112000, while the sum is 72.

The spelling of 56667351742785 in words is "fifty-six trillion, six hundred sixty-seven billion, three hundred fifty-one million, seven hundred forty-two thousand, seven hundred eighty-five".