56166350500432 has 20 divisors (see below), whose sum is σ = 108822663864436. Its totient is φ = 28083082406400.

The previous prime is 56166350500423. The next prime is 56166350500451. The reversal of 56166350500432 is 23400505366165.

It can be written as a sum of positive squares in 2 ways, for example, as 22895880481296 + 33270470019136 = 4784964^2 + 5768056^2 .

It is a congruent number.

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, 674523 + ... + 10620154.

Almost surely, 2^{56166350500432} is an apocalyptic number.

It is an amenable number.

56166350500432 is a deficient number, since it is larger than the sum of its proper divisors (52656313364004).

56166350500432 is a wasteful number, since it uses less digits than its factorization.

56166350500432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11605486 (or 11605480 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 46.

Adding to 56166350500432 its reverse (23400505366165), we get a palindrome (79566855866597).

The spelling of 56166350500432 in words is "fifty-six trillion, one hundred sixty-six billion, three hundred fifty million, five hundred thousand, four hundred thirty-two".