144566513642 has 8 divisors (see below), whose sum is σ = 218305138500. Its totient is φ = 71798134144.

The previous prime is 144566513633. The next prime is 144566513647. The reversal of 144566513642 is 246315665441.

It can be written as a sum of positive squares in 2 ways, for example, as 140526767161 + 4039746481 = 374869^2 + 63559^2 .

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

It is not an unprimeable number, because it can be changed into a prime (144566513647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242560967 + ... + 242561562.

Almost surely, 2^144566513642 is an apocalyptic number.

144566513642 is a deficient number, since it is larger than the sum of its proper divisors (73738624858).

144566513642 is a wasteful number, since it uses less digits than its factorization.

144566513642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485122680.

The product of its digits is 2073600, while the sum is 47.

The spelling of 144566513642 in words is "one hundred forty-four billion, five hundred sixty-six million, five hundred thirteen thousand, six hundred forty-two".