55019207779008 has 224 divisors, whose sum is σ = 159277577133312. Its totient is φ = 16622945587200.

The previous prime is 55019207778943. The next prime is 55019207779069. The reversal of 55019207779008 is 80097770291055.

It is a super-2 number, since 2×55019207779008² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3444936463 + ... + 3444952433.

Almost surely, 2^{55019207779008} 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 55019207779008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79638788566656).

55019207779008 is an abundant number, since it is smaller than the sum of its proper divisors (104258369354304).

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

55019207779008 is a wasteful number, since it uses less digits than its factorization.

55019207779008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20743 (or 20733 counting only the distinct ones).

The product of its (nonzero) digits is 11113200, while the sum is 60.

The spelling of 55019207779008 in words is "fifty-five trillion, nineteen billion, two hundred seven million, seven hundred seventy-nine thousand, eight".