551266135404 has 24 divisors (see below), whose sum is σ = 1288747104960. Its totient is φ = 183404027664.

The previous prime is 551266135397. The next prime is 551266135411. The reversal of 551266135404 is 404531662155.

It is an interprime number because it is at equal distance from previous prime (551266135397) and next prime (551266135411).

It is a super-2 number, since 2×551266135404² (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, 43912314 + ... + 43924865.

It is an arithmetic number, because the mean of its divisors is an integer number (53697796040).

Almost surely, 2^551266135404 is an apocalyptic number.

It is an amenable number.

551266135404 is an abundant number, since it is smaller than the sum of its proper divisors (737480969556).

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

551266135404 is a wasteful number, since it uses less digits than its factorization.

551266135404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87837709 (or 87837707 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

Adding to 551266135404 its reverse (404531662155), we get a palindrome (955797797559).

The spelling of 551266135404 in words is "five hundred fifty-one billion, two hundred sixty-six million, one hundred thirty-five thousand, four hundred four".