10420663046525 has 6 divisors (see below), whose sum is σ = 12921622177722. Its totient is φ = 8336530437200.

The previous prime is 10420663046513. The next prime is 10420663046531. The reversal of 10420663046525 is 52564036602401.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 124509473881 + 10296153572644 = 352859^2 + 3208762^2 .

It is not a de Polignac number, because 10420663046525 - 2⁶ = 10420663046461 is a prime.

It is a super-3 number, since 3×10420663046525³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208413260906 + ... + 208413260955.

It is an arithmetic number, because the mean of its divisors is an integer number (2153603696287).

Almost surely, 2^{10420663046525} is an apocalyptic number.

It is an amenable number.

10420663046525 is a deficient number, since it is larger than the sum of its proper divisors (2500959131197).

10420663046525 is an equidigital number, since it uses as much as digits as its factorization.

10420663046525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416826521871 (or 416826521866 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

Adding to 10420663046525 its reverse (52564036602401), we get a palindrome (62984699648926).

The spelling of 10420663046525 in words is "ten trillion, four hundred twenty billion, six hundred sixty-three million, forty-six thousand, five hundred twenty-five".