1154398234164 has 144 divisors (see below), whose sum is σ = 3169930256640. Its totient is φ = 325982469120.

The previous prime is 1154398234151. The next prime is 1154398234183. The reversal of 1154398234164 is 4614328934511.

It is a super-2 number, since 2×1154398234164² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 220681429 + ... + 220686659.

It is an arithmetic number, because the mean of its divisors is an integer number (22013404560).

Almost surely, 2^{1154398234164} is an apocalyptic number.

1154398234164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1154398234164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584965128320).

1154398234164 is an abundant number, since it is smaller than the sum of its proper divisors (2015532022476).

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

1154398234164 is a wasteful number, since it uses less digits than its factorization.

1154398234164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9558 (or 9549 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 1154398234164 in words is "one trillion, one hundred fifty-four billion, three hundred ninety-eight million, two hundred thirty-four thousand, one hundred sixty-four".