1001668508425 has 48 divisors (see below), whose sum is σ = 1382010517888. Its totient is φ = 715475980800.

The previous prime is 1001668508419. The next prime is 1001668508429. The reversal of 1001668508425 is 5248058661001.

It is a de Polignac number, because none of the positive numbers 2^k-1001668508425 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001668508429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1091485 + ... + 1787365.

Almost surely, 2^{1001668508425} is an apocalyptic number.

It is an amenable number.

1001668508425 is a deficient number, since it is larger than the sum of its proper divisors (380342009463).

1001668508425 is a wasteful number, since it uses less digits than its factorization.

1001668508425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696050 (or 696045 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 1001668508425 in words is "one trillion, one billion, six hundred sixty-eight million, five hundred eight thousand, four hundred twenty-five".