86567256240 has 40 divisors (see below), whose sum is σ = 268358495088. Its totient is φ = 23084601600.

The previous prime is 86567256211. The next prime is 86567256241. The reversal of 86567256240 is 4265276568.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (86567256241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180348211 + ... + 180348690.

Almost surely, 2^86567256240 is an apocalyptic number.

86567256240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86567256240 is an abundant number, since it is smaller than the sum of its proper divisors (181791238848).

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

86567256240 is a wasteful number, since it uses less digits than its factorization.

86567256240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360696917 (or 360696911 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 86567256240 in words is "eighty-six billion, five hundred sixty-seven million, two hundred fifty-six thousand, two hundred forty".