551791194506 has 8 divisors (see below), whose sum is σ = 828081122400. Its totient is φ = 275764153708.

The previous prime is 551791194391. The next prime is 551791194511. The reversal of 551791194506 is 605491197155.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65716526 + ... + 65724921.

It is an arithmetic number, because the mean of its divisors is an integer number (103510140300).

Almost surely, 2^551791194506 is an apocalyptic number.

551791194506 is a deficient number, since it is larger than the sum of its proper divisors (276289927894).

551791194506 is a wasteful number, since it uses less digits than its factorization.

551791194506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131443548.

The product of its (nonzero) digits is 1701000, while the sum is 53.

The spelling of 551791194506 in words is "five hundred fifty-one billion, seven hundred ninety-one million, one hundred ninety-four thousand, five hundred six".