551140366 has 8 divisors (see below), whose sum is σ = 944812080. Its totient is φ = 236203008.

The previous prime is 551140363. The next prime is 551140367. The reversal of 551140366 is 663041155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×551140366³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551140361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19683571 + ... + 19683598.

It is an arithmetic number, because the mean of its divisors is an integer number (118101510).

Almost surely, 2^551140366 is an apocalyptic number.

551140366 is a deficient number, since it is larger than the sum of its proper divisors (393671714).

551140366 is a wasteful number, since it uses less digits than its factorization.

551140366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39367178.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 551140366 is about 23476.3788945399. The cubic root of 551140366 is about 819.8871379468.

The spelling of 551140366 in words is "five hundred fifty-one million, one hundred forty thousand, three hundred sixty-six".