1141699661478 has 48 divisors (see below), whose sum is σ = 2573585104896. Its totient is φ = 365390267760.

The previous prime is 1141699661467. The next prime is 1141699661483. The reversal of 1141699661478 is 8741669961411.

1141699661478 is a `hidden beast` number, since 1 + 1 + 4 + 1 + 6 + 9 + 9 + 6 + 614 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7984476 + ... + 8126207.

It is an arithmetic number, because the mean of its divisors is an integer number (53616356352).

Almost surely, 2^{1141699661478} is an apocalyptic number.

1141699661478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1141699661478 is an abundant number, since it is smaller than the sum of its proper divisors (1431885443418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1141699661478 is a wasteful number, since it uses less digits than its factorization.

1141699661478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16110849 (or 16110846 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The spelling of 1141699661478 in words is "one trillion, one hundred forty-one billion, six hundred ninety-nine million, six hundred sixty-one thousand, four hundred seventy-eight".