1165424106525 has 96 divisors (see below), whose sum is σ = 2263499293440. Its totient is φ = 517933854720.

The previous prime is 1165424106491. The next prime is 1165424106571. The reversal of 1165424106525 is 5256014245611.

It is a happy number.

It is not a de Polignac number, because 1165424106525 - 2⁸ = 1165424106269 is a prime.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 23848917 + ... + 23897733.

It is an arithmetic number, because the mean of its divisors is an integer number (23578117640).

Almost surely, 2^{1165424106525} is an apocalyptic number.

1165424106525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1165424106525 is a deficient number, since it is larger than the sum of its proper divisors (1098075186915).

1165424106525 is a wasteful number, since it uses less digits than its factorization.

1165424106525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50103 (or 50098 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 1165424106525 in words is "one trillion, one hundred sixty-five billion, four hundred twenty-four million, one hundred six thousand, five hundred twenty-five".