551554244065 has 16 divisors (see below), whose sum is σ = 722050021440. Its totient is φ = 401121817920.

The previous prime is 551554244051. The next prime is 551554244089. The reversal of 551554244065 is 560442455155.

It is not a de Polignac number, because 551554244065 - 2¹⁹ = 551553719777 is a prime.

It is a super-2 number, since 2×551554244065² (a number of 24 digits) contains 22 as substring.

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, 3763747 + ... + 3907543.

It is an arithmetic number, because the mean of its divisors is an integer number (45128126340).

Almost surely, 2^551554244065 is an apocalyptic number.

551554244065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

551554244065 is a deficient number, since it is larger than the sum of its proper divisors (170495777375).

551554244065 is a wasteful number, since it uses less digits than its factorization.

551554244065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213552.

The product of its (nonzero) digits is 2400000, while the sum is 46.

The spelling of 551554244065 in words is "five hundred fifty-one billion, five hundred fifty-four million, two hundred forty-four thousand, sixty-five".