55606216401 has 12 divisors (see below), whose sum is σ = 80345208528. Its totient is φ = 37059217944.

The previous prime is 55606216397. The next prime is 55606216433. The reversal of 55606216401 is 10461260655.

55606216401 is a `hidden beast` number, since 5 + 5 + 6 + 0 + 6 + 2 + 1 + 640 + 1 = 666.

55606216401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55606216401 - 2² = 55606216397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55606216441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 935655 + ... + 993308.

It is an arithmetic number, because the mean of its divisors is an integer number (6695434044).

Almost surely, 2^55606216401 is an apocalyptic number.

It is an amenable number.

55606216401 is a deficient number, since it is larger than the sum of its proper divisors (24738992127).

55606216401 is a wasteful number, since it uses less digits than its factorization.

55606216401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932172 (or 1932169 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 55606216401 in words is "fifty-five billion, six hundred six million, two hundred sixteen thousand, four hundred one".