1156506072215 has 16 divisors (see below), whose sum is σ = 1559542638528. Its totient is φ = 816903284736.

The previous prime is 1156506072209. The next prime is 1156506072347. The reversal of 1156506072215 is 5122706056511.

It is a cyclic number.

It is not a de Polignac number, because 1156506072215 - 2¹⁶ = 1156506006679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386789834 + ... + 386792823.

It is an arithmetic number, because the mean of its divisors is an integer number (97471414908).

Almost surely, 2^{1156506072215} is an apocalyptic number.

1156506072215 is a deficient number, since it is larger than the sum of its proper divisors (403036566313).

1156506072215 is a wasteful number, since it uses less digits than its factorization.

1156506072215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773582698.

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 1156506072215 in words is "one trillion, one hundred fifty-six billion, five hundred six million, seventy-two thousand, two hundred fifteen".