551899700436 has 48 divisors (see below), whose sum is σ = 1485234692480. Its totient is φ = 156238968960.

The previous prime is 551899700377. The next prime is 551899700461. The reversal of 551899700436 is 634007998155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30129535 + ... + 30147846.

Almost surely, 2^551899700436 is an apocalyptic number.

It is an amenable number.

551899700436 is an abundant number, since it is smaller than the sum of its proper divisors (933334992044).

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

551899700436 is a wasteful number, since it uses less digits than its factorization.

551899700436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60277504 (or 60277502 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 551899700436 in words is "five hundred fifty-one billion, eight hundred ninety-nine million, seven hundred thousand, four hundred thirty-six".