511005406000 has 40 divisors (see below), whose sum is σ = 1235611076544. Its totient is φ = 204402161600.

The previous prime is 511005405997. The next prime is 511005406007. The reversal of 511005406000 is 604500115.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×511005406000² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511005406007) 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, 127749352 + ... + 127753351.

Almost surely, 2^511005406000 is an apocalyptic number.

511005406000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

511005406000 is an abundant number, since it is smaller than the sum of its proper divisors (724605670544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511005406000 is a wasteful number, since it uses less digits than its factorization.

511005406000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255502726 (or 255502710 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 511005406000 its reverse (604500115), we get a palindrome (511609906115).

The spelling of 511005406000 in words is "five hundred eleven billion, five million, four hundred six thousand".