6550001515501 has 16 divisors (see below), whose sum is σ = 6952592678400. Its totient is φ = 6157287761328.

The previous prime is 6550001515457. The next prime is 6550001515517. The reversal of 6550001515501 is 1055151000556.

It is not a de Polignac number, because 6550001515501 - 2¹⁹ = 6550000991213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550001510501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4132870 + ... + 5493688.

It is an arithmetic number, because the mean of its divisors is an integer number (434537042400).

Almost surely, 2^{6550001515501} is an apocalyptic number.

It is an amenable number.

6550001515501 is a deficient number, since it is larger than the sum of its proper divisors (402591162899).

6550001515501 is a wasteful number, since it uses less digits than its factorization.

6550001515501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364448.

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

The spelling of 6550001515501 in words is "six trillion, five hundred fifty billion, one million, five hundred fifteen thousand, five hundred one".