511234440016 has 10 divisors (see below), whose sum is σ = 990516727562. Its totient is φ = 255617220000.

The previous prime is 511234440001. The next prime is 511234440047. The reversal of 511234440016 is 610044432115.

It can be written as a sum of positive squares in only one way, i.e., 402793315600 + 108441124416 = 634660^2 + 329304^2 .

It is a super-2 number, since 2×511234440016² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 511234440016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15976076235 + ... + 15976076266.

Almost surely, 2^511234440016 is an apocalyptic number.

It is an amenable number.

511234440016 is a deficient number, since it is larger than the sum of its proper divisors (479282287546).

511234440016 is a wasteful number, since it uses less digits than its factorization.

511234440016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31952152509 (or 31952152503 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 511234440016 in words is "five hundred eleven billion, two hundred thirty-four million, four hundred forty thousand, sixteen".