1426055661 has 24 divisors (see below), whose sum is σ = 2108493504. Its totient is φ = 928509120.

The previous prime is 1426055647. The next prime is 1426055669. The reversal of 1426055661 is 1665506241.

1426055661 is a `hidden beast` number, since 1 + 42 + 6 + 0 + 556 + 61 = 666.

It is not a de Polignac number, because 1426055661 - 2⁶ = 1426055597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426055669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57945 + ... + 78801.

It is an arithmetic number, because the mean of its divisors is an integer number (87853896).

Almost surely, 2^1426055661 is an apocalyptic number.

It is an amenable number.

1426055661 is a deficient number, since it is larger than the sum of its proper divisors (682437843).

1426055661 is a wasteful number, since it uses less digits than its factorization.

1426055661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21041 (or 21038 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1426055661 is about 37763.1521592147. The cubic root of 1426055661 is about 1125.5863704681.

The spelling of 1426055661 in words is "one billion, four hundred twenty-six million, fifty-five thousand, six hundred sixty-one".