144686459550 has 24 divisors (see below), whose sum is σ = 358822420056. Its totient is φ = 38583055840.

The previous prime is 144686459539. The next prime is 144686459551. The reversal of 144686459550 is 55954686441.

It is a super-2 number, since 2×144686459550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144686459551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 482288049 + ... + 482288348.

It is an arithmetic number, because the mean of its divisors is an integer number (14950934169).

Almost surely, 2^144686459550 is an apocalyptic number.

144686459550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144686459550 is an abundant number, since it is smaller than the sum of its proper divisors (214135960506).

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

144686459550 is a wasteful number, since it uses less digits than its factorization.

144686459550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964576412 (or 964576407 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 57.

The spelling of 144686459550 in words is "one hundred forty-four billion, six hundred eighty-six million, four hundred fifty-nine thousand, five hundred fifty".