1040681471066 has 4 divisors (see below), whose sum is σ = 1561022206602. Its totient is φ = 520340735532.

The previous prime is 1040681471051. The next prime is 1040681471087. The reversal of 1040681471066 is 6601741860401.

1040681471066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 910060668841 + 130620802225 = 953971^2 + 361415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260170367765 + ... + 260170367768.

Almost surely, 2^{1040681471066} is an apocalyptic number.

1040681471066 is a deficient number, since it is larger than the sum of its proper divisors (520340735536).

1040681471066 is an equidigital number, since it uses as much as digits as its factorization.

1040681471066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520340735535.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 1040681471066 in words is "one trillion, forty billion, six hundred eighty-one million, four hundred seventy-one thousand, sixty-six".