2251204426206 has 48 divisors (see below), whose sum is σ = 4899620381760. Its totient is φ = 747016153920.

The previous prime is 2251204426193. The next prime is 2251204426223. The reversal of 2251204426206 is 6026244021522.

2251204426206 is a `hidden beast` number, since 2 + 2 + 5 + 1 + 2 + 0 + 442 + 6 + 206 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31377931 + ... + 31449593.

It is an arithmetic number, because the mean of its divisors is an integer number (102075424620).

Almost surely, 2^{2251204426206} is an apocalyptic number.

2251204426206 is an abundant number, since it is smaller than the sum of its proper divisors (2648415955554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251204426206 is a wasteful number, since it uses less digits than its factorization.

2251204426206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79521 (or 79518 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 2251204426206 its reverse (6026244021522), we get a palindrome (8277448447728).

The spelling of 2251204426206 in words is "two trillion, two hundred fifty-one billion, two hundred four million, four hundred twenty-six thousand, two hundred six".