1165135464420 has 192 divisors, whose sum is σ = 3761472556800. Its totient is φ = 267482234880.

The previous prime is 1165135464373. The next prime is 1165135464463. The reversal of 1165135464420 is 244645315611.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 474541 + ... + 1598580.

It is an arithmetic number, because the mean of its divisors is an integer number (19591002900).

Almost surely, 2^{1165135464420} is an apocalyptic number.

1165135464420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165135464420 is an abundant number, since it is smaller than the sum of its proper divisors (2596337092380).

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

1165135464420 is a wasteful number, since it uses less digits than its factorization.

1165135464420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073198 (or 2073196 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 1165135464420 in words is "one trillion, one hundred sixty-five billion, one hundred thirty-five million, four hundred sixty-four thousand, four hundred twenty".