855350016731 has 4 divisors (see below), whose sum is σ = 977542876272. Its totient is φ = 733157157192.

The previous prime is 855350016707. The next prime is 855350016779. The reversal of 855350016731 is 137610053558.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855350016731 is a prime.

It is a super-2 number, since 2×855350016731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855350016791) 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, 61096429760 + ... + 61096429773.

It is an arithmetic number, because the mean of its divisors is an integer number (244385719068).

Almost surely, 2^855350016731 is an apocalyptic number.

855350016731 is a deficient number, since it is larger than the sum of its proper divisors (122192859541).

855350016731 is a wasteful number, since it uses less digits than its factorization.

855350016731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122192859540.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 855350016731 in words is "eight hundred fifty-five billion, three hundred fifty million, sixteen thousand, seven hundred thirty-one".