10251640251644 has 24 divisors (see below), whose sum is σ = 19589759397936. Its totient is φ = 4655444528000.

The previous prime is 10251640251631. The next prime is 10251640251803. The reversal of 10251640251644 is 44615204615201.

It is a super-2 number, since 2×10251640251644² (a number of 27 digits) contains 22 as substring.

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, 109751537 + ... + 109844904.

It is an arithmetic number, because the mean of its divisors is an integer number (816239974914).

Almost surely, 2^{10251640251644} is an apocalyptic number.

It is an amenable number.

10251640251644 is a deficient number, since it is larger than the sum of its proper divisors (9338119146292).

10251640251644 is a wasteful number, since it uses less digits than its factorization.

10251640251644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219597517 (or 219597515 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

Adding to 10251640251644 its reverse (44615204615201), we get a palindrome (54866844866845).

The spelling of 10251640251644 in words is "ten trillion, two hundred fifty-one billion, six hundred forty million, two hundred fifty-one thousand, six hundred forty-four".