42006144655 has 16 divisors (see below), whose sum is σ = 51744512160. Its totient is φ = 32718486528.

The previous prime is 42006144643. The next prime is 42006144689. The reversal of 42006144655 is 55644160024.

It is a cyclic number.

It is not a de Polignac number, because 42006144655 - 2¹³ = 42006136463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244810 + ... + 379399.

It is an arithmetic number, because the mean of its divisors is an integer number (3234032010).

Almost surely, 2^42006144655 is an apocalyptic number.

42006144655 is a deficient number, since it is larger than the sum of its proper divisors (9738367505).

42006144655 is a wasteful number, since it uses less digits than its factorization.

42006144655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624570.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 42006144655 in words is "forty-two billion, six million, one hundred forty-four thousand, six hundred fifty-five".