56667221734 has 4 divisors (see below), whose sum is σ = 85000832604. Its totient is φ = 28333610866.

The previous prime is 56667221717. The next prime is 56667221747. The reversal of 56667221734 is 43712276665.

56667221734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×56667221734² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14166805432 + ... + 14166805435.

It is an arithmetic number, because the mean of its divisors is an integer number (21250208151).

Almost surely, 2^56667221734 is an apocalyptic number.

56667221734 is a deficient number, since it is larger than the sum of its proper divisors (28333610870).

56667221734 is a wasteful number, since it uses less digits than its factorization.

56667221734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333610869.

The product of its digits is 2540160, while the sum is 49.

The spelling of 56667221734 in words is "fifty-six billion, six hundred sixty-seven million, two hundred twenty-one thousand, seven hundred thirty-four".