55111210305406 has 16 divisors (see below), whose sum is σ = 92136388746960. Its totient is φ = 24569703665280.

The previous prime is 55111210305401. The next prime is 55111210305409. The reversal of 55111210305406 is 60450301211155.

It is a super-3 number, since 3×55111210305406³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111210305401) 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, 42655734885 + ... + 42655736176.

It is an arithmetic number, because the mean of its divisors is an integer number (5758524296685).

Almost surely, 2^{55111210305406} is an apocalyptic number.

55111210305406 is a deficient number, since it is larger than the sum of its proper divisors (37025178441554).

55111210305406 is a wasteful number, since it uses less digits than its factorization.

55111210305406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85311471099.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 55111210305406 in words is "fifty-five trillion, one hundred eleven billion, two hundred ten million, three hundred five thousand, four hundred six".