2551650663455 has 16 divisors (see below), whose sum is σ = 3103708295808. Its totient is φ = 2013651360000.

The previous prime is 2551650663437. The next prime is 2551650663481. The reversal of 2551650663455 is 5543660561552.

It is a happy number.

2551650663455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2551650663455 - 2²⁰ = 2551649614879 is a prime.

It is a super-2 number, since 2×2551650663455² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551650663397 and 2551650663406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9185606 + ... + 9459315.

It is an arithmetic number, because the mean of its divisors is an integer number (193981768488).

Almost surely, 2^{2551650663455} is an apocalyptic number.

2551650663455 is a deficient number, since it is larger than the sum of its proper divisors (552057632353).

2551650663455 is a wasteful number, since it uses less digits than its factorization.

2551650663455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18645298.

The product of its (nonzero) digits is 16200000, while the sum is 53.

The spelling of 2551650663455 in words is "two trillion, five hundred fifty-one billion, six hundred fifty million, six hundred sixty-three thousand, four hundred fifty-five".