85403207660 has 12 divisors (see below), whose sum is σ = 179346736128. Its totient is φ = 34161283056.

The previous prime is 85403207641. The next prime is 85403207663. The reversal of 85403207660 is 6670230458.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85403207663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135080172 + ... + 2135080211.

It is an arithmetic number, because the mean of its divisors is an integer number (14945561344).

Almost surely, 2^85403207660 is an apocalyptic number.

It is an amenable number.

85403207660 is an abundant number, since it is smaller than the sum of its proper divisors (93943528468).

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

85403207660 is a wasteful number, since it uses less digits than its factorization.

85403207660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270160392 (or 4270160390 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 85403207660 in words is "eighty-five billion, four hundred three million, two hundred seven thousand, six hundred sixty".