6551555110201 has 4 divisors (see below), whose sum is σ = 6615162441472. Its totient is φ = 6487947778932.

The previous prime is 6551555110193. The next prime is 6551555110259. The reversal of 6551555110201 is 1020115551556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6551555110201 - 2³ = 6551555110193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6551555110501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31803665481 + ... + 31803665686.

It is an arithmetic number, because the mean of its divisors is an integer number (1653790610368).

Almost surely, 2^{6551555110201} is an apocalyptic number.

It is an amenable number.

6551555110201 is a deficient number, since it is larger than the sum of its proper divisors (63607331271).

6551555110201 is a wasteful number, since it uses less digits than its factorization.

6551555110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63607331270.

The product of its (nonzero) digits is 37500, while the sum is 37.

The spelling of 6551555110201 in words is "six trillion, five hundred fifty-one billion, five hundred fifty-five million, one hundred ten thousand, two hundred one".