10001025126640 has 40 divisors (see below), whose sum is σ = 23252553335088. Its totient is φ = 4000380817920.

The previous prime is 10001025126607. The next prime is 10001025126739. The reversal of 10001025126640 is 4662152010001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 10001025126599 and 10001025126608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13034475 + ... + 13780405.

Almost surely, 2^{10001025126640} is an apocalyptic number.

10001025126640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001025126640 is an abundant number, since it is smaller than the sum of its proper divisors (13251528208448).

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

10001025126640 is a wasteful number, since it uses less digits than its factorization.

10001025126640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913537 (or 913531 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 10001025126640 its reverse (4662152010001), we get a palindrome (14663177136641).

The spelling of 10001025126640 in words is "ten trillion, one billion, twenty-five million, one hundred twenty-six thousand, six hundred forty".