144722220478 has 8 divisors (see below), whose sum is σ = 236818179000. Its totient is φ = 65782827480.

The previous prime is 144722220457. The next prime is 144722220497. The reversal of 144722220478 is 874022227441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×144722220478² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3289141353 + ... + 3289141396.

It is an arithmetic number, because the mean of its divisors is an integer number (29602272375).

Almost surely, 2^144722220478 is an apocalyptic number.

144722220478 is a deficient number, since it is larger than the sum of its proper divisors (92095958522).

144722220478 is a wasteful number, since it uses less digits than its factorization.

144722220478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6578282762.

The product of its (nonzero) digits is 401408, while the sum is 43.

The spelling of 144722220478 in words is "one hundred forty-four billion, seven hundred twenty-two million, two hundred twenty thousand, four hundred seventy-eight".