10645440061 has 16 divisors (see below), whose sum is σ = 11324784640. Its totient is φ = 9978182640.

The previous prime is 10645440041. The next prime is 10645440073. The reversal of 10645440061 is 16004454601.

It is a cyclic number.

It is not a de Polignac number, because 10645440061 - 2²¹ = 10643342909 is a prime.

It is a super-2 number, since 2×10645440061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645440011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3252856 + ... + 3256126.

It is an arithmetic number, because the mean of its divisors is an integer number (707799040).

Almost surely, 2^10645440061 is an apocalyptic number.

It is an amenable number.

10645440061 is a deficient number, since it is larger than the sum of its proper divisors (679344579).

10645440061 is a wasteful number, since it uses less digits than its factorization.

10645440061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 10645440061 its reverse (16004454601), we get a palindrome (26649894662).

The spelling of 10645440061 in words is "ten billion, six hundred forty-five million, four hundred forty thousand, sixty-one".