2426451553566 has 64 divisors (see below), whose sum is σ = 5539103136000. Its totient is φ = 786778813728.

The previous prime is 2426451553549. The next prime is 2426451553573. The reversal of 2426451553566 is 6653551546242.

2426451553566 is a `hidden beast` number, since 2 + 4 + 2 + 6 + 45 + 1 + 5 + 535 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8821585 + ... + 9092483.

It is an arithmetic number, because the mean of its divisors is an integer number (86548486500).

Almost surely, 2^{2426451553566} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2426451553566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2769551568000).

2426451553566 is an abundant number, since it is smaller than the sum of its proper divisors (3112651582434).

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

2426451553566 is a wasteful number, since it uses less digits than its factorization.

2426451553566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275430 (or 275424 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 54.

The spelling of 2426451553566 in words is "two trillion, four hundred twenty-six billion, four hundred fifty-one million, five hundred fifty-three thousand, five hundred sixty-six".