1690098666 has 32 divisors (see below), whose sum is σ = 3435436800. Its totient is φ = 554211840.

The previous prime is 1690098661. The next prime is 1690098667. The reversal of 1690098666 is 6668900961.

It is not an unprimeable number, because it can be changed into a prime (1690098661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 126850 + ... + 139538.

It is an arithmetic number, because the mean of its divisors is an integer number (107357400).

Almost surely, 2^1690098666 is an apocalyptic number.

1690098666 is an abundant number, since it is smaller than the sum of its proper divisors (1745338134).

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

1690098666 is a wasteful number, since it uses less digits than its factorization.

1690098666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13054.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 1690098666 is about 41110.8096003959. The cubic root of 1690098666 is about 1191.1616051919.

The spelling of 1690098666 in words is "one billion, six hundred ninety million, ninety-eight thousand, six hundred sixty-six".