511020113455 has 16 divisors (see below), whose sum is σ = 660510702720. Its totient is φ = 378292487328.

The previous prime is 511020113447. The next prime is 511020113473. The reversal of 511020113455 is 554311020115.

It is not a de Polignac number, because 511020113455 - 2³ = 511020113447 is a prime.

It is a super-2 number, since 2×511020113455² (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 15 ways as a sum of consecutive naturals, for example, 62544277 + ... + 62552446.

It is an arithmetic number, because the mean of its divisors is an integer number (41281918920).

Almost surely, 2^511020113455 is an apocalyptic number.

511020113455 is a deficient number, since it is larger than the sum of its proper divisors (149490589265).

511020113455 is a wasteful number, since it uses less digits than its factorization.

511020113455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125096790.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 511020113455 in words is "five hundred eleven billion, twenty million, one hundred thirteen thousand, four hundred fifty-five".