6650690057 has 8 divisors (see below), whose sum is σ = 7256145792. Its totient is φ = 6045375600.

The previous prime is 6650690017. The next prime is 6650690069. The reversal of 6650690057 is 7500960566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6650690057 - 2⁶ = 6650689993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650690017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79307 + ... + 139967.

It is an arithmetic number, because the mean of its divisors is an integer number (907018224).

Almost surely, 2^6650690057 is an apocalyptic number.

It is an amenable number.

6650690057 is a deficient number, since it is larger than the sum of its proper divisors (605455735).

6650690057 is a wasteful number, since it uses less digits than its factorization.

6650690057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70639.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 6650690057 is about 81551.7630526772. The cubic root of 6650690057 is about 1880.5673986220.

The spelling of 6650690057 in words is "six billion, six hundred fifty million, six hundred ninety thousand, fifty-seven".