354143341520 has 80 divisors (see below), whose sum is σ = 839752323840. Its totient is φ = 138846469632.

The previous prime is 354143341499. The next prime is 354143341549. The reversal of 354143341520 is 25143341453.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4279577 + ... + 4361543.

It is an arithmetic number, because the mean of its divisors is an integer number (10496904048).

Almost surely, 2^354143341520 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 354143341520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419876161920).

354143341520 is an abundant number, since it is smaller than the sum of its proper divisors (485608982320).

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

354143341520 is a wasteful number, since it uses less digits than its factorization.

354143341520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83052 (or 83046 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 354143341520 its reverse (25143341453), we get a palindrome (379286682973).

The spelling of 354143341520 in words is "three hundred fifty-four billion, one hundred forty-three million, three hundred forty-one thousand, five hundred twenty".