15551363441401 has 8 divisors (see below), whose sum is σ = 15569981084160. Its totient is φ = 15532756862592.

The previous prime is 15551363441377. The next prime is 15551363441441. The reversal of 15551363441401 is 10414436315551.

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

It is a cyclic number.

It is not a de Polignac number, because 15551363441401 - 2²¹ = 15551361344249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15551363441441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48585 + ... + 5577193.

It is an arithmetic number, because the mean of its divisors is an integer number (1946247635520).

Almost surely, 2^{15551363441401} is an apocalyptic number.

It is an amenable number.

15551363441401 is a deficient number, since it is larger than the sum of its proper divisors (18617642759).

15551363441401 is a wasteful number, since it uses less digits than its factorization.

15551363441401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531975.

The product of its (nonzero) digits is 432000, while the sum is 43.

Adding to 15551363441401 its reverse (10414436315551), we get a palindrome (25965799756952).

The spelling of 15551363441401 in words is "fifteen trillion, five hundred fifty-one billion, three hundred sixty-three million, four hundred forty-one thousand, four hundred one".