10645261016533 has 72 divisors (see below), whose sum is σ = 13344840045600. Its totient is φ = 8458051155840.

The previous prime is 10645261016531. The next prime is 10645261016543. The reversal of 10645261016533 is 33561016254601.

It is not a de Polignac number, because 10645261016533 - 2¹ = 10645261016531 is a prime.

It is a super-2 number, since 2×10645261016533² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10645261016533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645261016531) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 772004203 + ... + 772017991.

Almost surely, 2^{10645261016533} is an apocalyptic number.

10645261016533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10645261016533 is a deficient number, since it is larger than the sum of its proper divisors (2699579029067).

10645261016533 is a wasteful number, since it uses less digits than its factorization.

10645261016533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15843 (or 15819 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 10645261016533 in words is "ten trillion, six hundred forty-five billion, two hundred sixty-one million, sixteen thousand, five hundred thirty-three".