6662763017425 has 12 divisors (see below), whose sum is σ = 8261893283980. Its totient is φ = 5330167096320.

The previous prime is 6662763017413. The next prime is 6662763017437. The reversal of 6662763017425 is 5247103672666.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6662763017413) and next prime (6662763017437).

It can be written as a sum of positive squares in 6 ways, for example, as 313537283136 + 6349225734289 = 559944^2 + 2519767^2 .

It is not a de Polignac number, because 6662763017425 - 2¹³ = 6662763009233 is a prime.

It is a super-2 number, since 2×6662763017425² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2256769 + ... + 4291681.

Almost surely, 2^{6662763017425} is an apocalyptic number.

It is an amenable number.

6662763017425 is a deficient number, since it is larger than the sum of its proper divisors (1599130266555).

6662763017425 is a wasteful number, since it uses less digits than its factorization.

6662763017425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165892 (or 2165887 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 6662763017425 in words is "six trillion, six hundred sixty-two billion, seven hundred sixty-three million, seventeen thousand, four hundred twenty-five".