154200204540420 has 96 divisors (see below), whose sum is σ = 436157595651456. Its totient is φ = 40701518592000.

The previous prime is 154200204540413. The next prime is 154200204540433. The reversal of 154200204540420 is 24045402002451.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18077452 + ... + 25203068.

It is an arithmetic number, because the mean of its divisors is an integer number (4543308288036).

Almost surely, 2^{154200204540420} is an apocalyptic number.

154200204540420 is a gapful number since it is divisible by the number (10) 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 154200204540420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218078797825728).

154200204540420 is an abundant number, since it is smaller than the sum of its proper divisors (281957391111036).

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

154200204540420 is a wasteful number, since it uses less digits than its factorization.

154200204540420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129301 (or 7129299 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 33.

Adding to 154200204540420 its reverse (24045402002451), we get a palindrome (178245606542871).

The spelling of 154200204540420 in words is "one hundred fifty-four trillion, two hundred billion, two hundred four million, five hundred forty thousand, four hundred twenty".