866470132140755 has 4 divisors (see below), whose sum is σ = 1039764158568912. Its totient is φ = 693176105712600.

The previous prime is 866470132140733. The next prime is 866470132140793. The reversal of 866470132140755 is 557041231074668.

It is a happy number.

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

It is not a de Polignac number, because 866470132140755 - 2¹⁴ = 866470132124371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 866470132140694 and 866470132140703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86647013214071 + ... + 86647013214080.

It is an arithmetic number, because the mean of its divisors is an integer number (259941039642228).

Almost surely, 2^{866470132140755} is an apocalyptic number.

866470132140755 is a deficient number, since it is larger than the sum of its proper divisors (173294026428157).

866470132140755 is a wasteful number, since it uses less digits than its factorization.

866470132140755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173294026428156.

The product of its (nonzero) digits is 33868800, while the sum is 59.

The spelling of 866470132140755 in words is "eight hundred sixty-six trillion, four hundred seventy billion, one hundred thirty-two million, one hundred forty thousand, seven hundred fifty-five".