511155555441 has 16 divisors (see below), whose sum is σ = 682446167040. Its totient is φ = 340317838800.

The previous prime is 511155555431. The next prime is 511155555451. The reversal of 511155555441 is 144555551115.

It is an interprime number because it is at equal distance from previous prime (511155555431) and next prime (511155555451).

It is not a de Polignac number, because 511155555441 - 2¹⁴ = 511155539057 is a prime.

It is a super-2 number, since 2×511155555441² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511155555393 and 511155555402.

It is not an unprimeable number, because it can be changed into a prime (511155555431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12802876 + ... + 12842738.

It is an arithmetic number, because the mean of its divisors is an integer number (42652885440).

Almost surely, 2^511155555441 is an apocalyptic number.

It is an amenable number.

511155555441 is a deficient number, since it is larger than the sum of its proper divisors (171290611599).

511155555441 is a wasteful number, since it uses less digits than its factorization.

511155555441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45436.

The product of its digits is 250000, while the sum is 42.

The spelling of 511155555441 in words is "five hundred eleven billion, one hundred fifty-five million, five hundred fifty-five thousand, four hundred forty-one".