10001643375766 has 48 divisors (see below), whose sum is σ = 17480083888800. Its totient is φ = 4279485638400.

The previous prime is 10001643375761. The next prime is 10001643375817. The reversal of 10001643375766 is 66757334610001.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001643375761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479707710 + ... + 479728558.

It is an arithmetic number, because the mean of its divisors is an integer number (364168414350).

Almost surely, 2^{10001643375766} is an apocalyptic number.

10001643375766 is a deficient number, since it is larger than the sum of its proper divisors (7478440513034).

10001643375766 is a wasteful number, since it uses less digits than its factorization.

10001643375766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28549 (or 28542 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 49.

Adding to 10001643375766 its reverse (66757334610001), we get a palindrome (76758977985767).

The spelling of 10001643375766 in words is "ten trillion, one billion, six hundred forty-three million, three hundred seventy-five thousand, seven hundred sixty-six".