511113166401 has 32 divisors (see below), whose sum is σ = 699113289600. Its totient is φ = 331969042944.

The previous prime is 511113166337. The next prime is 511113166427. The reversal of 511113166401 is 104661311115.

It is not a de Polignac number, because 511113166401 - 2⁶ = 511113166337 is a prime.

It is a super-2 number, since 2×511113166401² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511113166451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167631525 + ... + 167634573.

It is an arithmetic number, because the mean of its divisors is an integer number (21847290300).

Almost surely, 2^511113166401 is an apocalyptic number.

It is an amenable number.

511113166401 is a deficient number, since it is larger than the sum of its proper divisors (188000123199).

511113166401 is a wasteful number, since it uses less digits than its factorization.

511113166401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5985.

The product of its (nonzero) digits is 2160, while the sum is 30.

Adding to 511113166401 its reverse (104661311115), we get a palindrome (615774477516).

The spelling of 511113166401 in words is "five hundred eleven billion, one hundred thirteen million, one hundred sixty-six thousand, four hundred one".