155576256806 has 16 divisors (see below), whose sum is σ = 247195520064. Its totient is φ = 73181595264.

The previous prime is 155576256757. The next prime is 155576256859. The reversal of 155576256806 is 608652675551.

It is a happy number.

It is a super-2 number, since 2×155576256806² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879065 + ... + 1041108.

It is an arithmetic number, because the mean of its divisors is an integer number (15449720004).

Almost surely, 2^155576256806 is an apocalyptic number.

155576256806 is a deficient number, since it is larger than the sum of its proper divisors (91619263258).

155576256806 is a wasteful number, since it uses less digits than its factorization.

155576256806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922575.

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 155576256806 in words is "one hundred fifty-five billion, five hundred seventy-six million, two hundred fifty-six thousand, eight hundred six".