1165134778632 has 48 divisors (see below), whose sum is σ = 3442443666480. Its totient is φ = 353071144800.

The previous prime is 1165134778627. The next prime is 1165134778637. The reversal of 1165134778632 is 2368774315611.

1165134778632 is a `hidden beast` number, since 1 + 1 + 6 + 513 + 47 + 7 + 86 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1165134778627) and next prime (1165134778637).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1165134778637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 735564094 + ... + 735565677.

It is an arithmetic number, because the mean of its divisors is an integer number (71717576385).

Almost surely, 2^{1165134778632} is an apocalyptic number.

1165134778632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1165134778632 is an abundant number, since it is smaller than the sum of its proper divisors (2277308887848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165134778632 is a wasteful number, since it uses less digits than its factorization.

1165134778632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471129794 (or 1471129787 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 1165134778632 in words is "one trillion, one hundred sixty-five billion, one hundred thirty-four million, seven hundred seventy-eight thousand, six hundred thirty-two".