42001450353655 has 128 divisors (see below), whose sum is σ = 59805701222400. Its totient is φ = 28031828557824.

The previous prime is 42001450353647. The next prime is 42001450353659. The reversal of 42001450353655 is 55635305410024.

It is not a de Polignac number, because 42001450353655 - 2³ = 42001450353647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42001450353659) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1602545191 + ... + 1602571399.

It is an arithmetic number, because the mean of its divisors is an integer number (467232040800).

Almost surely, 2^{42001450353655} is an apocalyptic number.

42001450353655 is a deficient number, since it is larger than the sum of its proper divisors (17804250868745).

42001450353655 is a wasteful number, since it uses less digits than its factorization.

42001450353655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26873.

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 42001450353655 its reverse (55635305410024), we get a palindrome (97636755763679).

The spelling of 42001450353655 in words is "forty-two trillion, one billion, four hundred fifty million, three hundred fifty-three thousand, six hundred fifty-five".