144651717140 has 72 divisors (see below), whose sum is σ = 353835804672. Its totient is φ = 49528584000.

The previous prime is 144651717107. The next prime is 144651717157. The reversal of 144651717140 is 41717156441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637709 + ... + 834251.

It is an arithmetic number, because the mean of its divisors is an integer number (4914386176).

Almost surely, 2^144651717140 is an apocalyptic number.

144651717140 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 144651717140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176917902336).

144651717140 is an abundant number, since it is smaller than the sum of its proper divisors (209184087532).

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

144651717140 is a wasteful number, since it uses less digits than its factorization.

144651717140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197317 (or 197308 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 144651717140 in words is "one hundred forty-four billion, six hundred fifty-one million, seven hundred seventeen thousand, one hundred forty".