1425365436666 has 16 divisors (see below), whose sum is σ = 2852005254624. Its totient is φ = 474909415344.

The previous prime is 1425365436659. The next prime is 1425365436721. The reversal of 1425365436666 is 6666345635241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53084680 + ... + 53111523.

It is an arithmetic number, because the mean of its divisors is an integer number (178250328414).

Almost surely, 2^{1425365436666} is an apocalyptic number.

1425365436666 is an abundant number, since it is smaller than the sum of its proper divisors (1426639817958).

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

1425365436666 is a wasteful number, since it uses less digits than its factorization.

1425365436666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106198445.

The product of its digits is 55987200, while the sum is 57.

The spelling of 1425365436666 in words is "one trillion, four hundred twenty-five billion, three hundred sixty-five million, four hundred thirty-six thousand, six hundred sixty-six".