10520642144 has 12 divisors (see below), whose sum is σ = 20712514284. Its totient is φ = 5260321056.

The previous prime is 10520642141. The next prime is 10520642149. The reversal of 10520642144 is 44124602501.

It is a super-2 number, since 2×10520642144² (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 (10520642141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164385002 + ... + 164385065.

It is an arithmetic number, because the mean of its divisors is an integer number (1726042857).

Almost surely, 2^10520642144 is an apocalyptic number.

It is an amenable number.

10520642144 is a deficient number, since it is larger than the sum of its proper divisors (10191872140).

10520642144 is an equidigital number, since it uses as much as digits as its factorization.

10520642144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328770077 (or 328770069 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 10520642144 in words is "ten billion, five hundred twenty million, six hundred forty-two thousand, one hundred forty-four".