2154330353340 has 144 divisors (see below), whose sum is σ = 7129674246240. Its totient is φ = 522203351040.

The previous prime is 2154330353339. The next prime is 2154330353359. The reversal of 2154330353340 is 433530334512.

2154330353340 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 3 + 303 + 5 + 3 + 340 = 666.

It is a super-3 number, since 3×2154330353340³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2154330353295 and 2154330353304.

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, 19128072 + ... + 19240368.

It is an arithmetic number, because the mean of its divisors is an integer number (49511626710).

Almost surely, 2^{2154330353340} is an apocalyptic number.

2154330353340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154330353340 is an abundant number, since it is smaller than the sum of its proper divisors (4975343892900).

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

2154330353340 is a wasteful number, since it uses less digits than its factorization.

2154330353340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122012 (or 122007 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 36.

Adding to 2154330353340 its reverse (433530334512), we get a palindrome (2587860687852).

The spelling of 2154330353340 in words is "two trillion, one hundred fifty-four billion, three hundred thirty million, three hundred fifty-three thousand, three hundred forty".