405000806516 has 24 divisors (see below), whose sum is σ = 711871480320. Its totient is φ = 201609324000.

The previous prime is 405000806489. The next prime is 405000806533. The reversal of 405000806516 is 615608000504.

It is a happy number.

It is a super-2 number, since 2×405000806516² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4603541 + ... + 4690691.

It is an arithmetic number, because the mean of its divisors is an integer number (29661311680).

Almost surely, 2^405000806516 is an apocalyptic number.

It is an amenable number.

405000806516 is a deficient number, since it is larger than the sum of its proper divisors (306870673804).

405000806516 is a wasteful number, since it uses less digits than its factorization.

405000806516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92255 (or 92253 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 405000806516 in words is "four hundred five billion, eight hundred six thousand, five hundred sixteen".