1040158965406 has 32 divisors (see below), whose sum is σ = 1718682973920. Its totient is φ = 472100337280.

The previous prime is 1040158965361. The next prime is 1040158965451. The reversal of 1040158965406 is 6045698510401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1040158965361) and next prime (1040158965451).

It is a self number, because there is not a number n which added to its sum of digits gives 1040158965406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513590 + ... + 2090758.

It is an arithmetic number, because the mean of its divisors is an integer number (53708842935).

Almost surely, 2^{1040158965406} is an apocalyptic number.

1040158965406 is a deficient number, since it is larger than the sum of its proper divisors (678524008514).

1040158965406 is an equidigital number, since it uses as much as digits as its factorization.

1040158965406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577881 (or 577859 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 1040158965406 in words is "one trillion, forty billion, one hundred fifty-eight million, nine hundred sixty-five thousand, four hundred six".