10001643540603 has 16 divisors (see below), whose sum is σ = 15666910162176. Its totient is φ = 5595325057440.

The previous prime is 10001643540509. The next prime is 10001643540611. The reversal of 10001643540603 is 30604534610001.

It is not a de Polignac number, because 10001643540603 - 2¹³ = 10001643532411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (10001643540613) 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, 11656926775 + ... + 11656927632.

It is an arithmetic number, because the mean of its divisors is an integer number (979181885136).

Almost surely, 2^{10001643540603} is an apocalyptic number.

10001643540603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10001643540603 is a deficient number, since it is larger than the sum of its proper divisors (5665266621573).

10001643540603 is a wasteful number, since it uses less digits than its factorization.

10001643540603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23313854434.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 10001643540603 in words is "ten trillion, one billion, six hundred forty-three million, five hundred forty thousand, six hundred three".