551601661514 has 8 divisors (see below), whose sum is σ = 827481829860. Its totient is φ = 275774384896.

The previous prime is 551601661441. The next prime is 551601661517. The reversal of 551601661514 is 415166106155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 527286561025 + 24315100489 = 726145^2 + 155933^2 .

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

It is not an unprimeable number, because it can be changed into a prime (551601661517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13196849 + ... + 13238580.

Almost surely, 2^551601661514 is an apocalyptic number.

551601661514 is a deficient number, since it is larger than the sum of its proper divisors (275880168346).

551601661514 is a wasteful number, since it uses less digits than its factorization.

551601661514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26445864.

The product of its (nonzero) digits is 108000, while the sum is 41.

Adding to 551601661514 its reverse (415166106155), we get a palindrome (966767767669).

The spelling of 551601661514 in words is "five hundred fifty-one billion, six hundred one million, six hundred sixty-one thousand, five hundred fourteen".