671019767662 has 16 divisors (see below), whose sum is σ = 1053782609040. Its totient is φ = 320037676672.

The previous prime is 671019767617. The next prime is 671019767681. The reversal of 671019767662 is 266767910176.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 671019767597 and 671019767606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69689803 + ... + 69699430.

It is an arithmetic number, because the mean of its divisors is an integer number (65861413065).

Almost surely, 2^671019767662 is an apocalyptic number.

671019767662 is a deficient number, since it is larger than the sum of its proper divisors (382762841378).

671019767662 is a wasteful number, since it uses less digits than its factorization.

671019767662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139389347.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The spelling of 671019767662 in words is "six hundred seventy-one billion, nineteen million, seven hundred sixty-seven thousand, six hundred sixty-two".