6651398983 has 2 divisors, whose sum is σ = 6651398984. Its totient is φ = 6651398982.

The previous prime is 6651398953. The next prime is 6651398987. The reversal of 6651398983 is 3898931566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6651398983 - 2²⁵ = 6617844551 is a prime.

It is a super-2 number, since 2×6651398983² = 88482216862106868578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6651398987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325699491 + 3325699492.

It is an arithmetic number, because the mean of its divisors is an integer number (3325699492).

Almost surely, 2^6651398983 is an apocalyptic number.

6651398983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6651398983 is an equidigital number, since it uses as much as digits as its factorization.

6651398983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 58.

The square root of 6651398983 is about 81556.1094155429. The cubic root of 6651398983 is about 1880.6342155360.

The spelling of 6651398983 in words is "six billion, six hundred fifty-one million, three hundred ninety-eight thousand, nine hundred eighty-three".