144897617920 has 208 divisors, whose sum is σ = 384707024640. Its totient is φ = 51942195200.

The previous prime is 144897617903. The next prime is 144897617933. The reversal of 144897617920 is 29716798441.

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, 15990351 + ... + 15999409.

Almost surely, 2^144897617920 is an apocalyptic number.

144897617920 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 144897617920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192353512320).

144897617920 is an abundant number, since it is smaller than the sum of its proper divisors (239809406720).

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

144897617920 is an equidigital number, since it uses as much as digits as its factorization.

144897617920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9170 (or 9148 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 144897617920 in words is "one hundred forty-four billion, eight hundred ninety-seven million, six hundred seventeen thousand, nine hundred twenty".