511246201040 has 20 divisors (see below), whose sum is σ = 1188647417604. Its totient is φ = 204498480384.

The previous prime is 511246201033. The next prime is 511246201093. The reversal of 511246201040 is 40102642115.

It can be written as a sum of positive squares in 2 ways, for example, as 316302758464 + 194943442576 = 562408^2 + 441524^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×511246201040² (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 3 ways as a sum of consecutive naturals, for example, 3195288677 + ... + 3195288836.

Almost surely, 2^511246201040 is an apocalyptic number.

It is an amenable number.

511246201040 is an abundant number, since it is smaller than the sum of its proper divisors (677401216564).

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

511246201040 is a wasteful number, since it uses less digits than its factorization.

511246201040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390577526 (or 6390577520 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 511246201040 its reverse (40102642115), we get a palindrome (551348843155).

The spelling of 511246201040 in words is "five hundred eleven billion, two hundred forty-six million, two hundred one thousand, forty".