665378486070 has 32 divisors (see below), whose sum is σ = 1597936751712. Its totient is φ = 177319997952.

The previous prime is 665378486057. The next prime is 665378486147. The reversal of 665378486070 is 70684873566.

It is a junction number, because it is equal to n+sod(n) for n = 665378485995 and 665378486013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7094197 + ... + 7187376.

It is an arithmetic number, because the mean of its divisors is an integer number (49935523491).

Almost surely, 2^665378486070 is an apocalyptic number.

665378486070 is an abundant number, since it is smaller than the sum of its proper divisors (932558265642).

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

665378486070 is a wasteful number, since it uses less digits than its factorization.

665378486070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14283136.

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 665378486070 in words is "six hundred sixty-five billion, three hundred seventy-eight million, four hundred eighty-six thousand, seventy".