6690190386 has 16 divisors (see below), whose sum is σ = 14596779168. Its totient is φ = 2027330400.

The previous prime is 6690190379. The next prime is 6690190393. The reversal of 6690190386 is 6830910966.

It is an interprime number because it is at equal distance from previous prime (6690190379) and next prime (6690190393).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50683195 + ... + 50683326.

It is an arithmetic number, because the mean of its divisors is an integer number (912298698).

Almost surely, 2^6690190386 is an apocalyptic number.

6690190386 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6690190386 is an abundant number, since it is smaller than the sum of its proper divisors (7906588782).

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

6690190386 is a wasteful number, since it uses less digits than its factorization.

6690190386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101366537.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 6690190386 is about 81793.5840148847. The cubic root of 6690190386 is about 1884.2831259129.

The spelling of 6690190386 in words is "six billion, six hundred ninety million, one hundred ninety thousand, three hundred eighty-six".