1156115667 has 16 divisors (see below), whose sum is σ = 1854421760. Its totient is φ = 625866912.

The previous prime is 1156115641. The next prime is 1156115683. The reversal of 1156115667 is 7665116511.

It is not a de Polignac number, because 1156115667 - 2¹¹ = 1156113619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156115687) 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, 1448368 + ... + 1449165.

It is an arithmetic number, because the mean of its divisors is an integer number (115901360).

Almost surely, 2^1156115667 is an apocalyptic number.

1156115667 is a deficient number, since it is larger than the sum of its proper divisors (698306093).

1156115667 is a wasteful number, since it uses less digits than its factorization.

1156115667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897562.

The product of its digits is 37800, while the sum is 39.

The square root of 1156115667 is about 34001.7009427470. The cubic root of 1156115667 is about 1049.5434650216.

It can be divided in two parts, 115611 and 5667, that added together give a triangular number (121278 = T₄₉₂).

The spelling of 1156115667 in words is "one billion, one hundred fifty-six million, one hundred fifteen thousand, six hundred sixty-seven".