10215254661641 has 4 divisors (see below), whose sum is σ = 10215266996484. Its totient is φ = 10215242326800.

The previous prime is 10215254661581. The next prime is 10215254661653. The reversal of 10215254661641 is 14616645251201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1480298055625 + 8734956606016 = 1216675^2 + 2955496^2 .

It is a cyclic number.

It is not a de Polignac number, because 10215254661641 - 2²² = 10215250467337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10215254661592 and 10215254661601.

It is not an unprimeable number, because it can be changed into a prime (10215254666641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4828250 + ... + 6613811.

It is an arithmetic number, because the mean of its divisors is an integer number (2553816749121).

Almost surely, 2^{10215254661641} is an apocalyptic number.

It is an amenable number.

10215254661641 is a deficient number, since it is larger than the sum of its proper divisors (12334843).

10215254661641 is an equidigital number, since it uses as much as digits as its factorization.

10215254661641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12334842.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 10215254661641 in words is "ten trillion, two hundred fifteen billion, two hundred fifty-four million, six hundred sixty-one thousand, six hundred forty-one".