86772066455 has 4 divisors (see below), whose sum is σ = 104126479752. Its totient is φ = 69417653160.

The previous prime is 86772066449. The next prime is 86772066457. The reversal of 86772066455 is 55466027768.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86772066455 - 2¹² = 86772062359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86772066455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86772066457) 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, 8677206641 + ... + 8677206650.

It is an arithmetic number, because the mean of its divisors is an integer number (26031619938).

Almost surely, 2^86772066455 is an apocalyptic number.

86772066455 is a deficient number, since it is larger than the sum of its proper divisors (17354413297).

86772066455 is a wasteful number, since it uses less digits than its factorization.

86772066455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17354413296.

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 86772066455 in words is "eighty-six billion, seven hundred seventy-two million, sixty-six thousand, four hundred fifty-five".