10105620650 has 36 divisors (see below), whose sum is σ = 18985358706. Its totient is φ = 4002024000.

The previous prime is 10105620631. The next prime is 10105620659. The reversal of 10105620650 is 5602650101.

It can be written as a sum of positive squares in 9 ways, for example, as 2066884369 + 8038736281 = 45463^2 + 89659^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10105620659) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 500144 + ... + 519956.

Almost surely, 2^10105620650 is an apocalyptic number.

10105620650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10105620650 is a deficient number, since it is larger than the sum of its proper divisors (8879738056).

10105620650 is a wasteful number, since it uses less digits than its factorization.

10105620650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20027 (or 19921 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 10105620650 in words is "ten billion, one hundred five million, six hundred twenty thousand, six hundred fifty".