10145645645 has 16 divisors (see below), whose sum is σ = 13023844848. Its totient is φ = 7560314880.

The previous prime is 10145645641. The next prime is 10145645651. The reversal of 10145645645 is 54654654101.

It can be written as a sum of positive squares in 8 ways, for example, as 135443044 + 10010202601 = 11638^2 + 100051^2 .

It is not a de Polignac number, because 10145645645 - 2² = 10145645641 is a prime.

It is a super-3 number, since 3×10145645645³ (a number of 31 digits) contains 333 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 (10145645641) 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, 607016 + ... + 623505.

It is an arithmetic number, because the mean of its divisors is an integer number (813990303).

Almost surely, 2^10145645645 is an apocalyptic number.

It is an amenable number.

10145645645 is a deficient number, since it is larger than the sum of its proper divisors (2878199203).

10145645645 is a wasteful number, since it uses less digits than its factorization.

10145645645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230640.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 10145645645 in words is "ten billion, one hundred forty-five million, six hundred forty-five thousand, six hundred forty-five".