856597145495 has 32 divisors (see below), whose sum is σ = 1266367885440. Its totient is φ = 541666414080.

The previous prime is 856597145483. The next prime is 856597145497. The reversal of 856597145495 is 594541795658.

It is not a de Polignac number, because 856597145495 - 2⁶ = 856597145431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856597145497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457400 + ... + 1386509.

It is an arithmetic number, because the mean of its divisors is an integer number (39573996420).

Almost surely, 2^856597145495 is an apocalyptic number.

856597145495 is a deficient number, since it is larger than the sum of its proper divisors (409770739945).

856597145495 is a wasteful number, since it uses less digits than its factorization.

856597145495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844955.

The product of its digits is 272160000, while the sum is 68.

The spelling of 856597145495 in words is "eight hundred fifty-six billion, five hundred ninety-seven million, one hundred forty-five thousand, four hundred ninety-five".