42006355511 has 4 divisors (see below), whose sum is σ = 42007113312. Its totient is φ = 42005597712.

The previous prime is 42006355499. The next prime is 42006355541. The reversal of 42006355511 is 11555360024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42006355511 - 2²⁶ = 41939246647 is a prime.

It is a super-2 number, since 2×42006355511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42006355541) 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, 288575 + ... + 409008.

It is an arithmetic number, because the mean of its divisors is an integer number (10501778328).

Almost surely, 2^42006355511 is an apocalyptic number.

42006355511 is a deficient number, since it is larger than the sum of its proper divisors (757801).

42006355511 is an equidigital number, since it uses as much as digits as its factorization.

42006355511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757800.

The product of its (nonzero) digits is 18000, while the sum is 32.

It can be divided in two parts, 420063 and 55511, that added together give a palindrome (475574).

The spelling of 42006355511 in words is "forty-two billion, six million, three hundred fifty-five thousand, five hundred eleven".