1165233851420 has 24 divisors (see below), whose sum is σ = 2452668579648. Its totient is φ = 465012113600.

The previous prime is 1165233851389. The next prime is 1165233851429. The reversal of 1165233851420 is 241583325611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165233851429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67580351 + ... + 67597590.

It is an arithmetic number, because the mean of its divisors is an integer number (102194524152).

Almost surely, 2^{1165233851420} is an apocalyptic number.

1165233851420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165233851420 is an abundant number, since it is smaller than the sum of its proper divisors (1287434728228).

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

1165233851420 is a wasteful number, since it uses less digits than its factorization.

1165233851420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135178381 (or 135178379 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 1165233851420 in words is "one trillion, one hundred sixty-five billion, two hundred thirty-three million, eight hundred fifty-one thousand, four hundred twenty".