15554242234 has 8 divisors (see below), whose sum is σ = 23389547508. Its totient is φ = 7757726400.

The previous prime is 15554242217. The next prime is 15554242241. The reversal of 15554242234 is 43224245551.

It can be written as a sum of positive squares in 2 ways, for example, as 15550838209 + 3404025 = 124703^2 + 1845^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 15554242193 and 15554242202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9696357 + ... + 9697960.

Almost surely, 2^15554242234 is an apocalyptic number.

15554242234 is a deficient number, since it is larger than the sum of its proper divisors (7835305274).

15554242234 is a wasteful number, since it uses less digits than its factorization.

15554242234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19394720.

The product of its digits is 192000, while the sum is 37.

Adding to 15554242234 its reverse (43224245551), we get a palindrome (58778487785).

The spelling of 15554242234 in words is "fifteen billion, five hundred fifty-four million, two hundred forty-two thousand, two hundred thirty-four".