55642566794 has 8 divisors (see below), whose sum is σ = 83788613028. Its totient is φ = 27713029120.

The previous prime is 55642566787. The next prime is 55642566853. The reversal of 55642566794 is 49766524655.

It can be written as a sum of positive squares in 2 ways, for example, as 55641733225 + 833569 = 235885^2 + 913^2 .

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

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, 54126497 + ... + 54127524.

Almost surely, 2^55642566794 is an apocalyptic number.

55642566794 is a deficient number, since it is larger than the sum of its proper divisors (28146046234).

55642566794 is a wasteful number, since it uses less digits than its factorization.

55642566794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108254280.

The product of its digits is 54432000, while the sum is 59.

The spelling of 55642566794 in words is "fifty-five billion, six hundred forty-two million, five hundred sixty-six thousand, seven hundred ninety-four".