155851216886 has 16 divisors (see below), whose sum is σ = 238775869440. Its totient is φ = 76259608680.

The previous prime is 155851216853. The next prime is 155851216889. The reversal of 155851216886 is 688612158551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155851216889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868445 + ... + 1032423.

It is an arithmetic number, because the mean of its divisors is an integer number (14923491840).

Almost surely, 2^155851216886 is an apocalyptic number.

155851216886 is a deficient number, since it is larger than the sum of its proper divisors (82924652554).

155851216886 is a wasteful number, since it uses less digits than its factorization.

155851216886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174139.

The product of its digits is 4608000, while the sum is 56.

The spelling of 155851216886 in words is "one hundred fifty-five billion, eight hundred fifty-one million, two hundred sixteen thousand, eight hundred eighty-six".