55069669988508 has 144 divisors (see below), whose sum is σ = 150203910415104. Its totient is φ = 15657465519360.

The previous prime is 55069669988507. The next prime is 55069669988537. The reversal of 55069669988508 is 80588996696055.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55069669988507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1044998416 + ... + 1045051112.

It is an arithmetic number, because the mean of its divisors is an integer number (1043082711216).

Almost surely, 2^{55069669988508} 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 55069669988508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75101955207552).

55069669988508 is an abundant number, since it is smaller than the sum of its proper divisors (95134240426596).

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

55069669988508 is a wasteful number, since it uses less digits than its factorization.

55069669988508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61352 (or 61343 counting only the distinct ones).

The product of its (nonzero) digits is 10077696000, while the sum is 84.

The spelling of 55069669988508 in words is "fifty-five trillion, sixty-nine billion, six hundred sixty-nine million, nine hundred eighty-eight thousand, five hundred eight".