16435778055 has 8 divisors (see below), whose sum is σ = 26297244912. Its totient is φ = 8765748288.

The previous prime is 16435778027. The next prime is 16435778077. The reversal of 16435778055 is 55087753461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16435778055 - 2³⁰ = 15362036231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16435777989 and 16435778007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547859254 + ... + 547859283.

It is an arithmetic number, because the mean of its divisors is an integer number (3287155614).

Almost surely, 2^16435778055 is an apocalyptic number.

16435778055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16435778055 is a deficient number, since it is larger than the sum of its proper divisors (9861466857).

16435778055 is a wasteful number, since it uses less digits than its factorization.

16435778055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095718545.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 16435778055 in words is "sixteen billion, four hundred thirty-five million, seven hundred seventy-eight thousand, fifty-five".