16550355046365 has 144 divisors (see below), whose sum is σ = 36288888987312. Its totient is φ = 6928369717248.

The previous prime is 16550355046363. The next prime is 16550355046367. The reversal of 16550355046365 is 56364055305561.

16550355046365 is a `hidden beast` number, since 1 + 6 + 5 + 50 + 3 + 550 + 4 + 6 + 36 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (16550355046363) and next prime (16550355046367).

It can be written as a sum of positive squares in 8 ways, for example, as 3540497587641 + 13009857458724 = 1881621^2 + 3606918^2 .

It is not a de Polignac number, because 16550355046365 - 2¹ = 16550355046363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550355046361) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4579534 + ... + 7353423.

It is an arithmetic number, because the mean of its divisors is an integer number (252006173523).

Almost surely, 2^{16550355046365} is an apocalyptic number.

16550355046365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16550355046365 is an abundant number, since it is smaller than the sum of its proper divisors (19738533940947).

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

16550355046365 is a wasteful number, since it uses less digits than its factorization.

16550355046365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11933036 (or 11933026 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 54.

The spelling of 16550355046365 in words is "sixteen trillion, five hundred fifty billion, three hundred fifty-five million, forty-six thousand, three hundred sixty-five".