1165043056340 has 48 divisors (see below), whose sum is σ = 2483309767680. Its totient is φ = 459050442240.

The previous prime is 1165043056337. The next prime is 1165043056349. The reversal of 1165043056340 is 436503405611.

It is a junction number, because it is equal to n+sod(n) for n = 1165043056294 and 1165043056303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165043056349) 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, 174437 + ... + 1536396.

It is an arithmetic number, because the mean of its divisors is an integer number (51735620160).

Almost surely, 2^{1165043056340} is an apocalyptic number.

1165043056340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165043056340 is an abundant number, since it is smaller than the sum of its proper divisors (1318266711340).

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

1165043056340 is a wasteful number, since it uses less digits than its factorization.

1165043056340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711352 (or 1711350 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 1165043056340 in words is "one trillion, one hundred sixty-five billion, forty-three million, fifty-six thousand, three hundred forty".