551016105550 has 24 divisors (see below), whose sum is σ = 1025257428432. Its totient is φ = 220327416000.

The previous prime is 551016105509. The next prime is 551016105587. The reversal of 551016105550 is 55501610155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1834711 + ... + 2113810.

It is an arithmetic number, because the mean of its divisors is an integer number (42719059518).

Almost surely, 2^551016105550 is an apocalyptic number.

551016105550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551016105550 is a deficient number, since it is larger than the sum of its proper divisors (474241322882).

551016105550 is a wasteful number, since it uses less digits than its factorization.

551016105550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951324 (or 3951319 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 551016105550 in words is "five hundred fifty-one billion, sixteen million, one hundred five thousand, five hundred fifty".