55401211164111 has 8 divisors (see below), whose sum is σ = 73868316793344. Its totient is φ = 36934123155480.

The previous prime is 55401211164107. The next prime is 55401211164119. The reversal of 55401211164111 is 11146111210455.

It is a happy number.

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

It is not a de Polignac number, because 55401211164111 - 2² = 55401211164107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55401211164119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7622626 + ... + 12996416.

It is an arithmetic number, because the mean of its divisors is an integer number (9233539599168).

Almost surely, 2^{55401211164111} is an apocalyptic number.

55401211164111 is a deficient number, since it is larger than the sum of its proper divisors (18467105629233).

55401211164111 is a wasteful number, since it uses less digits than its factorization.

55401211164111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8810301.

The product of its (nonzero) digits is 4800, while the sum is 33.

Adding to 55401211164111 its reverse (11146111210455), we get a palindrome (66547322374566).

The spelling of 55401211164111 in words is "fifty-five trillion, four hundred one billion, two hundred eleven million, one hundred sixty-four thousand, one hundred eleven".