55340220102420 has 96 divisors (see below), whose sum is σ = 169055696388096. Its totient is φ = 13414503107200.

The previous prime is 55340220102389. The next prime is 55340220102437. The reversal of 55340220102420 is 2420102204355.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2697037 + ... + 10860683.

It is an arithmetic number, because the mean of its divisors is an integer number (1760996837376).

Almost surely, 2^{55340220102420} is an apocalyptic number.

It is an amenable number.

55340220102420 is an abundant number, since it is smaller than the sum of its proper divisors (113715476285676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55340220102420 is a wasteful number, since it uses less digits than its factorization.

55340220102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8173941 (or 8173939 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 55340220102420 its reverse (2420102204355), we get a palindrome (57760322306775).

The spelling of 55340220102420 in words is "fifty-five trillion, three hundred forty billion, two hundred twenty million, one hundred two thousand, four hundred twenty".