253445645200000 has 192 divisors, whose sum is σ = 688471282830240. Its totient is φ = 92162051200000.

The previous prime is 253445645199979. The next prime is 253445645200001. The reversal of 253445645200000 is 2546544352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (253445645200001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24400642 + ... + 33200641.

Almost surely, 2^{253445645200000} is an apocalyptic number.

253445645200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253445645200000 is an abundant number, since it is smaller than the sum of its proper divisors (435025637630240).

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

253445645200000 is an frugal number, since it uses more digits than its factorization.

253445645200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57601333 (or 57601301 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 253445645200000 in words is "two hundred fifty-three trillion, four hundred forty-five billion, six hundred forty-five million, two hundred thousand".