511160320642 has 16 divisors (see below), whose sum is σ = 768129492600. Its totient is φ = 255117530880.

The previous prime is 511160320633. The next prime is 511160320651. The reversal of 511160320642 is 246023061115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (511160320633) and next prime (511160320651).

It can be written as a sum of positive squares in 4 ways, for example, as 506586639001 + 4573681641 = 711749^2 + 67629^2 .

It is a super-2 number, since 2×511160320642² (a number of 24 digits) contains 22 as substring.

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, 2674842 + ... + 2859562.

Almost surely, 2^511160320642 is an apocalyptic number.

511160320642 is a deficient number, since it is larger than the sum of its proper divisors (256969171958).

511160320642 is a wasteful number, since it uses less digits than its factorization.

511160320642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187221.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 511160320642 its reverse (246023061115), we get a palindrome (757183381757).

The spelling of 511160320642 in words is "five hundred eleven billion, one hundred sixty million, three hundred twenty thousand, six hundred forty-two".