665411761070 has 16 divisors (see below), whose sum is σ = 1368847051488. Its totient is φ = 228141175200.

The previous prime is 665411761067. The next prime is 665411761073. The reversal of 665411761070 is 70167114566.

It is an interprime number because it is at equal distance from previous prime (665411761067) and next prime (665411761073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665411761073) by changing a digit.

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, 4752941081 + ... + 4752941220.

It is an arithmetic number, because the mean of its divisors is an integer number (85552940718).

Almost surely, 2^665411761070 is an apocalyptic number.

665411761070 is an abundant number, since it is smaller than the sum of its proper divisors (703435290418).

665411761070 is a wasteful number, since it uses less digits than its factorization.

665411761070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9505882315.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 665411761070 in words is "six hundred sixty-five billion, four hundred eleven million, seven hundred sixty-one thousand, seventy".