405505501111 has 8 divisors (see below), whose sum is σ = 406304864784. Its totient is φ = 404706507840.

The previous prime is 405505501109. The next prime is 405505501147. The reversal of 405505501111 is 111105505504.

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

It is a cyclic number.

It is not a de Polignac number, because 405505501111 - 2¹ = 405505501109 is a prime.

It is a super-2 number, since 2×405505501111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 405505501111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405505501151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2152531 + ... + 2333323.

It is an arithmetic number, because the mean of its divisors is an integer number (50788108098).

Almost surely, 2^405505501111 is an apocalyptic number.

405505501111 is a deficient number, since it is larger than the sum of its proper divisors (799363673).

405505501111 is a wasteful number, since it uses less digits than its factorization.

405505501111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185201.

The product of its (nonzero) digits is 2500, while the sum is 28.

The spelling of 405505501111 in words is "four hundred five billion, five hundred five million, five hundred one thousand, one hundred eleven".