10215640420425 has 36 divisors (see below), whose sum is σ = 19960742256624. Its totient is φ = 4953037778400.

The previous prime is 10215640420411. The next prime is 10215640420459. The reversal of 10215640420425 is 52402404651201.

10215640420425 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 5 + 640 + 4 + 2 + 0 + 4 + 2 + 5 = 666.

It is not a de Polignac number, because 10215640420425 - 2⁴ = 10215640420409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10215640420425.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2063763267 + ... + 2063768216.

It is an arithmetic number, because the mean of its divisors is an integer number (554465062684).

Almost surely, 2^{10215640420425} is an apocalyptic number.

10215640420425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10215640420425 is a deficient number, since it is larger than the sum of its proper divisors (9745101836199).

10215640420425 is a wasteful number, since it uses less digits than its factorization.

10215640420425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127531510 (or 4127531502 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 10215640420425 in words is "ten trillion, two hundred fifteen billion, six hundred forty million, four hundred twenty thousand, four hundred twenty-five".