551334966 has 48 divisors (see below), whose sum is σ = 1381376304. Its totient is φ = 145406016.

The previous prime is 551334961. The next prime is 551334967. The reversal of 551334966 is 669433155.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551334961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68305 + ... + 75948.

It is an arithmetic number, because the mean of its divisors is an integer number (28778673).

Almost surely, 2^551334966 is an apocalyptic number.

551334966 is an abundant number, since it is smaller than the sum of its proper divisors (830041338).

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

551334966 is a wasteful number, since it uses less digits than its factorization.

551334966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144285 (or 144278 counting only the distinct ones).

The product of its digits is 291600, while the sum is 42.

The square root of 551334966 is about 23480.5231202373. The cubic root of 551334966 is about 819.9836235080.

The spelling of 551334966 in words is "five hundred fifty-one million, three hundred thirty-four thousand, nine hundred sixty-six".