65700880189 has 4 divisors (see below), whose sum is σ = 75086720224. Its totient is φ = 56315040156.

The previous prime is 65700880177. The next prime is 65700880211. The reversal of 65700880189 is 98108800756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65700880189 - 2⁹ = 65700879677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65700880109) 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, 4692920007 + ... + 4692920020.

It is an arithmetic number, because the mean of its divisors is an integer number (18771680056).

Almost surely, 2^65700880189 is an apocalyptic number.

It is an amenable number.

65700880189 is a deficient number, since it is larger than the sum of its proper divisors (9385840035).

65700880189 is an equidigital number, since it uses as much as digits as its factorization.

65700880189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385840034.

The product of its (nonzero) digits is 967680, while the sum is 52.

The spelling of 65700880189 in words is "sixty-five billion, seven hundred million, eight hundred eighty thousand, one hundred eighty-nine".