511321132866 has 32 divisors (see below), whose sum is σ = 1083003870528. Its totient is φ = 160383928320.

The previous prime is 511321132853. The next prime is 511321132873. The reversal of 511321132866 is 668231123115.

It is a super-2 number, since 2×511321132866² (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 15 ways as a sum of consecutive naturals, for example, 64041 + ... + 1013283.

It is an arithmetic number, because the mean of its divisors is an integer number (33843870954).

Almost surely, 2^511321132866 is an apocalyptic number.

511321132866 is an abundant number, since it is smaller than the sum of its proper divisors (571682737662).

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

511321132866 is a wasteful number, since it uses less digits than its factorization.

511321132866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954546.

The product of its digits is 51840, while the sum is 39.

The spelling of 511321132866 in words is "five hundred eleven billion, three hundred twenty-one million, one hundred thirty-two thousand, eight hundred sixty-six".