2154340298880 has 3072 divisors, whose sum is σ = 10335338496000. Its totient is φ = 413857382400.

The previous prime is 2154340298857. The next prime is 2154340298893. The reversal of 2154340298880 is 888920434512.

2154340298880 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 340 + 298 + 8 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 16963309377 + ... + 16963309503.

It is an arithmetic number, because the mean of its divisors is an integer number (3364368000).

Almost surely, 2^{2154340298880} is an apocalyptic number.

2154340298880 is a gapful number since it is divisible by the number (20) 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 2154340298880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5167669248000).

2154340298880 is an abundant number, since it is smaller than the sum of its proper divisors (8180998197120).

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

2154340298880 is a wasteful number, since it uses less digits than its factorization.

2154340298880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 2154340298880 in words is "two trillion, one hundred fifty-four billion, three hundred forty million, two hundred ninety-eight thousand, eight hundred eighty".