1156322052015 has 64 divisors (see below), whose sum is σ = 2006787363840. Its totient is φ = 565179264000.

The previous prime is 1156322052001. The next prime is 1156322052019. The reversal of 1156322052015 is 5102502236511.

It is not a de Polignac number, because 1156322052015 - 2⁴ = 1156322051999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156322052019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15282046 + ... + 15357524.

It is an arithmetic number, because the mean of its divisors is an integer number (31356052560).

Almost surely, 2^{1156322052015} is an apocalyptic number.

1156322052015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1156322052015 is a deficient number, since it is larger than the sum of its proper divisors (850465311825).

1156322052015 is a wasteful number, since it uses less digits than its factorization.

1156322052015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76064.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 1156322052015 its reverse (5102502236511), we get a palindrome (6258824288526).

The spelling of 1156322052015 in words is "one trillion, one hundred fifty-six billion, three hundred twenty-two million, fifty-two thousand, fifteen".