856551106 has 4 divisors (see below), whose sum is σ = 1284826662. Its totient is φ = 428275552.

The previous prime is 856551097. The next prime is 856551107. The reversal of 856551106 is 601155658.

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

It can be written as a sum of positive squares in only one way, i.e., 737937225 + 118613881 = 27165^2 + 10891^2 .

It is a super-6 number, since 6×856551106⁶ (a number of 55 digits) contains 666666 as substring.

It is not an unprimeable number, because it can be changed into a prime (856551107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214137775 + ... + 214137778.

Almost surely, 2^856551106 is an apocalyptic number.

856551106 is a deficient number, since it is larger than the sum of its proper divisors (428275556).

856551106 is a wasteful number, since it uses less digits than its factorization.

856551106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428275555.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 856551106 is about 29266.8943688940. The cubic root of 856551106 is about 949.6956018291.

The spelling of 856551106 in words is "eight hundred fifty-six million, five hundred fifty-one thousand, one hundred six".