15551050550115 has 16 divisors (see below), whose sum is σ = 24881822974368. Its totient is φ = 8293846262016.

The previous prime is 15551050550051. The next prime is 15551050550131. The reversal of 15551050550115 is 51105505015551.

It is not a de Polignac number, because 15551050550115 - 2⁶ = 15551050550051 is a prime.

It is a super-3 number, since 3×15551050550115³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160732 + ... + 5579241.

It is an arithmetic number, because the mean of its divisors is an integer number (1555113935898).

Almost surely, 2^{15551050550115} is an apocalyptic number.

15551050550115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15551050550115 is a deficient number, since it is larger than the sum of its proper divisors (9330772424253).

15551050550115 is a wasteful number, since it uses less digits than its factorization.

15551050550115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920598.

The product of its (nonzero) digits is 78125, while the sum is 39.

Adding to 15551050550115 its reverse (51105505015551), we get a palindrome (66656555565666).

The spelling of 15551050550115 in words is "fifteen trillion, five hundred fifty-one billion, fifty million, five hundred fifty thousand, one hundred fifteen".