144561511516 has 6 divisors (see below), whose sum is σ = 252982645160. Its totient is φ = 72280755756.

The previous prime is 144561511499. The next prime is 144561511537. The reversal of 144561511516 is 615115165441.

It is a super-2 number, since 2×144561511516² (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 as a sum of consecutive naturals, namely, 18070188936 + ... + 18070188943.

Almost surely, 2^144561511516 is an apocalyptic number.

It is an amenable number.

144561511516 is a deficient number, since it is larger than the sum of its proper divisors (108421133644).

144561511516 is a wasteful number, since it uses less digits than its factorization.

144561511516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36140377883 (or 36140377881 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

Adding to 144561511516 its reverse (615115165441), we get a palindrome (759676676957).

The spelling of 144561511516 in words is "one hundred forty-four billion, five hundred sixty-one million, five hundred eleven thousand, five hundred sixteen".