2251606350544 has 20 divisors (see below), whose sum is σ = 4363009204896. Its totient is φ = 1125668491232.

The previous prime is 2251606350541. The next prime is 2251606350599. The reversal of 2251606350544 is 4450536061522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251606350544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251606350541) 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, 8279764 + ... + 8547379.

Almost surely, 2^{2251606350544} is an apocalyptic number.

It is an amenable number.

2251606350544 is a deficient number, since it is larger than the sum of its proper divisors (2111402854352).

2251606350544 is a wasteful number, since it uses less digits than its factorization.

2251606350544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835514 (or 16835508 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 2251606350544 in words is "two trillion, two hundred fifty-one billion, six hundred six million, three hundred fifty thousand, five hundred forty-four".