10662421456 has 30 divisors (see below), whose sum is σ = 20843276870. Its totient is φ = 5283930624.

The previous prime is 10662421453. The next prime is 10662421459. The reversal of 10662421456 is 65412426601.

It is an interprime number because it is at equal distance from previous prime (10662421453) and next prime (10662421459).

It can be written as a sum of positive squares in 3 ways, for example, as 3706861456 + 6955560000 = 60884^2 + 83400^2 .

It is a super-2 number, since 2×10662421456² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10662421453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178210 + ... + 230398.

Almost surely, 2^10662421456 is an apocalyptic number.

10662421456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10662421456 is a deficient number, since it is larger than the sum of its proper divisors (10180855414).

10662421456 is an equidigital number, since it uses as much as digits as its factorization.

10662421456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52423 (or 52304 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 10662421456 in words is "ten billion, six hundred sixty-two million, four hundred twenty-one thousand, four hundred fifty-six".