10115511420415 has 16 divisors (see below), whose sum is σ = 12562097957280. Its totient is φ = 7810304584320.

The previous prime is 10115511420397. The next prime is 10115511420419. The reversal of 10115511420415 is 51402411551101.

It is not a de Polignac number, because 10115511420415 - 2⁵ = 10115511420383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10115511420419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13270641 + ... + 14012170.

It is an arithmetic number, because the mean of its divisors is an integer number (785131122330).

Almost surely, 2^{10115511420415} is an apocalyptic number.

10115511420415 is a deficient number, since it is larger than the sum of its proper divisors (2446586536865).

10115511420415 is a wasteful number, since it uses less digits than its factorization.

10115511420415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27285402.

The product of its (nonzero) digits is 4000, while the sum is 31.

Adding to 10115511420415 its reverse (51402411551101), we get a palindrome (61517922971516).

The spelling of 10115511420415 in words is "ten trillion, one hundred fifteen billion, five hundred eleven million, four hundred twenty thousand, four hundred fifteen".