354055121420 has 192 divisors, whose sum is σ = 999939741696. Its totient is φ = 101697361920.

The previous prime is 354055121393. The next prime is 354055121449. The reversal of 354055121420 is 24121550453.

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, 12338009 + ... + 12366671.

It is an arithmetic number, because the mean of its divisors is an integer number (5208019488).

Almost surely, 2^354055121420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354055121420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499969870848).

354055121420 is an abundant number, since it is smaller than the sum of its proper divisors (645884620276).

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

354055121420 is a wasteful number, since it uses less digits than its factorization.

354055121420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29320 (or 29318 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 354055121420 its reverse (24121550453), we get a palindrome (378176671873).

The spelling of 354055121420 in words is "three hundred fifty-four billion, fifty-five million, one hundred twenty-one thousand, four hundred twenty".