1025261032156 has 6 divisors (see below), whose sum is σ = 1794206806280. Its totient is φ = 512630516076.

The previous prime is 1025261032087. The next prime is 1025261032189. The reversal of 1025261032156 is 6512301625201.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 128157629016 + ... + 128157629023.

Almost surely, 2^{1025261032156} is an apocalyptic number.

It is an amenable number.

1025261032156 is a deficient number, since it is larger than the sum of its proper divisors (768945774124).

1025261032156 is a wasteful number, since it uses less digits than its factorization.

1025261032156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256315258043 (or 256315258041 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 1025261032156 its reverse (6512301625201), we get a palindrome (7537562657357).

The spelling of 1025261032156 in words is "one trillion, twenty-five billion, two hundred sixty-one million, thirty-two thousand, one hundred fifty-six".