56351643111 has 16 divisors (see below), whose sum is σ = 83768855520. Its totient is φ = 37439539200.

The previous prime is 56351643083. The next prime is 56351643113. The reversal of 56351643111 is 11134615365.

56351643111 is a `hidden beast` number, since 5 + 6 + 3 + 5 + 1 + 643 + 1 + 1 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-56351643111 is a prime.

It is a super-3 number, since 3×56351643111³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56351643113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3553690 + ... + 3569511.

It is an arithmetic number, because the mean of its divisors is an integer number (5235553470).

Almost surely, 2^56351643111 is an apocalyptic number.

56351643111 is a deficient number, since it is larger than the sum of its proper divisors (27417212409).

56351643111 is a wasteful number, since it uses less digits than its factorization.

56351643111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123503 (or 7123497 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The spelling of 56351643111 in words is "fifty-six billion, three hundred fifty-one million, six hundred forty-three thousand, one hundred eleven".