10240644536445 has 16 divisors (see below), whose sum is σ = 17348856626880. Its totient is φ = 5140401963264.

The previous prime is 10240644536431. The next prime is 10240644536509. The reversal of 10240644536445 is 54463544604201.

It is not a de Polignac number, because 10240644536445 - 2⁵ = 10240644536413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10240644536394 and 10240644536403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20079694915 + ... + 20079695424.

It is an arithmetic number, because the mean of its divisors is an integer number (1084303539180).

Almost surely, 2^{10240644536445} is an apocalyptic number.

10240644536445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10240644536445 is a deficient number, since it is larger than the sum of its proper divisors (7108212090435).

10240644536445 is a wasteful number, since it uses less digits than its factorization.

10240644536445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40159390364.

The product of its (nonzero) digits is 5529600, while the sum is 48.

The spelling of 10240644536445 in words is "ten trillion, two hundred forty billion, six hundred forty-four million, five hundred thirty-six thousand, four hundred forty-five".