1425065664 has 224 divisors, whose sum is σ = 4586630400. Its totient is φ = 384860160.

The previous prime is 1425065633. The next prime is 1425065687. The reversal of 1425065664 is 4665605241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 681132 + ... + 683220.

Almost surely, 2^1425065664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425065664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2293315200).

1425065664 is an abundant number, since it is smaller than the sum of its proper divisors (3161564736).

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

1425065664 is a wasteful number, since it uses less digits than its factorization.

1425065664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2141 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 1425065664 is about 37750.0419072615. The cubic root of 1425065664 is about 1125.3258418125.

The spelling of 1425065664 in words is "one billion, four hundred twenty-five million, sixty-five thousand, six hundred sixty-four".