42345220423355 has 16 divisors (see below), whose sum is σ = 52189285309920. Its totient is φ = 32965353189888.

The previous prime is 42345220423273. The next prime is 42345220423367. The reversal of 42345220423355 is 55332402254324.

It is a cyclic number.

It is not a de Polignac number, because 42345220423355 - 2¹⁴ = 42345220406971 is a prime.

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, 366028622 + ... + 366144291.

It is an arithmetic number, because the mean of its divisors is an integer number (3261830331870).

Almost surely, 2^{42345220423355} is an apocalyptic number.

42345220423355 is a deficient number, since it is larger than the sum of its proper divisors (9844064886565).

42345220423355 is a wasteful number, since it uses less digits than its factorization.

42345220423355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732173230.

The product of its (nonzero) digits is 3456000, while the sum is 44.

Adding to 42345220423355 its reverse (55332402254324), we get a palindrome (97677622677679).

The spelling of 42345220423355 in words is "forty-two trillion, three hundred forty-five billion, two hundred twenty million, four hundred twenty-three thousand, three hundred fifty-five".