1626011225663 has 12 divisors (see below), whose sum is σ = 1787870503944. Its totient is φ = 1477694156400.

The previous prime is 1626011225659. The next prime is 1626011225677. The reversal of 1626011225663 is 3665221106261.

It is a happy number.

It is not a de Polignac number, because 1626011225663 - 2² = 1626011225659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1626011225663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1626011225063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1902056 + ... + 2621037.

It is an arithmetic number, because the mean of its divisors is an integer number (148989208662).

Almost surely, 2^{1626011225663} is an apocalyptic number.

1626011225663 is a deficient number, since it is larger than the sum of its proper divisors (161859278281).

1626011225663 is a wasteful number, since it uses less digits than its factorization.

1626011225663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526086 (or 4526075 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 1626011225663 in words is "one trillion, six hundred twenty-six billion, eleven million, two hundred twenty-five thousand, six hundred sixty-three".