1011615134545 has 4 divisors (see below), whose sum is σ = 1213938161460. Its totient is φ = 809292107632.

The previous prime is 1011615134539. The next prime is 1011615134597. The reversal of 1011615134545 is 5454315161101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 331445458369 + 680169676176 = 575713^2 + 824724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011615134545 - 2¹⁷ = 1011615003473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101161513450 + ... + 101161513459.

It is an arithmetic number, because the mean of its divisors is an integer number (303484540365).

Almost surely, 2^{1011615134545} is an apocalyptic number.

It is an amenable number.

1011615134545 is a deficient number, since it is larger than the sum of its proper divisors (202323026915).

1011615134545 is an equidigital number, since it uses as much as digits as its factorization.

1011615134545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202323026914.

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 1011615134545 in words is "one trillion, eleven billion, six hundred fifteen million, one hundred thirty-four thousand, five hundred forty-five".