1165305300553 has 32 divisors (see below), whose sum is σ = 1217728512000. Its totient is φ = 1114360752960.

The previous prime is 1165305300547. The next prime is 1165305300583. The reversal of 1165305300553 is 3550035035611.

It is a cyclic number.

It is not a de Polignac number, because 1165305300553 - 2²⁹ = 1164768429641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165305300583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498205458 + ... + 498207796.

It is an arithmetic number, because the mean of its divisors is an integer number (38054016000).

Almost surely, 2^{1165305300553} is an apocalyptic number.

It is an amenable number.

1165305300553 is a deficient number, since it is larger than the sum of its proper divisors (52423211447).

1165305300553 is a wasteful number, since it uses less digits than its factorization.

1165305300553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805.

The product of its (nonzero) digits is 101250, while the sum is 37.

The spelling of 1165305300553 in words is "one trillion, one hundred sixty-five billion, three hundred five million, three hundred thousand, five hundred fifty-three".