866132710345751 has 6 divisors (see below), whose sum is σ = 881061742989552. Its totient is φ = 851452494912740.

The previous prime is 866132710345739. The next prime is 866132710345783. The reversal of 866132710345751 is 157543017231668.

It is not a de Polignac number, because 866132710345751 - 2⁴² = 861734663834647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866132710345711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124408601855 + ... + 124408608816.

It is an arithmetic number, because the mean of its divisors is an integer number (146843623831592).

Almost surely, 2^{866132710345751} is an apocalyptic number.

866132710345751 is a deficient number, since it is larger than the sum of its proper divisors (14929032643801).

866132710345751 is an equidigital number, since it uses as much as digits as its factorization.

866132710345751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248817210789 (or 248817210730 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 59.

The spelling of 866132710345751 in words is "eight hundred sixty-six trillion, one hundred thirty-two billion, seven hundred ten million, three hundred forty-five thousand, seven hundred fifty-one".