55019400154080 has 192 divisors, whose sum is σ = 174978837266688. Its totient is φ = 14530732093440.

The previous prime is 55019400154073. The next prime is 55019400154127. The reversal of 55019400154080 is 8045100491055.

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, 189424644 + ... + 189714876.

It is an arithmetic number, because the mean of its divisors is an integer number (911348110764).

Almost surely, 2^{55019400154080} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55019400154080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87489418633344).

55019400154080 is an abundant number, since it is smaller than the sum of its proper divisors (119959437112608).

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

55019400154080 is a wasteful number, since it uses less digits than its factorization.

55019400154080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294049 (or 294041 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 55019400154080 in words is "fifty-five trillion, nineteen billion, four hundred million, one hundred fifty-four thousand, eighty".