253355442202044 has 192 divisors, whose sum is σ = 808474047969280. Its totient is φ = 66815180467200.

The previous prime is 253355442202033. The next prime is 253355442202081. The reversal of 253355442202044 is 440202244553352.

253355442202044 is a `hidden beast` number, since 2 + 5 + 33 + 554 + 4 + 2 + 2 + 0 + 20 + 44 = 666.

It is a congruent number.

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, 172467444 + ... + 173930244.

Almost surely, 2^{253355442202044} 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 253355442202044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404237023984640).

253355442202044 is an abundant number, since it is smaller than the sum of its proper divisors (555118605767236).

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

253355442202044 is a wasteful number, since it uses less digits than its factorization.

253355442202044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480457 (or 1480449 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 45.

Adding to 253355442202044 its reverse (440202244553352), we get a palindrome (693557686755396).

The spelling of 253355442202044 in words is "two hundred fifty-three trillion, three hundred fifty-five billion, four hundred forty-two million, two hundred two thousand, forty-four".