671456155 has 16 divisors (see below), whose sum is σ = 817200000. Its totient is φ = 529551360.

The previous prime is 671456129. The next prime is 671456161. The reversal of 671456155 is 551654176.

It is not a de Polignac number, because 671456155 - 2¹⁹ = 670931867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492675 + ... + 494035.

It is an arithmetic number, because the mean of its divisors is an integer number (51075000).

Almost surely, 2^671456155 is an apocalyptic number.

671456155 is a deficient number, since it is larger than the sum of its proper divisors (145743845).

671456155 is a wasteful number, since it uses less digits than its factorization.

671456155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694.

The product of its digits is 126000, while the sum is 40.

The square root of 671456155 is about 25912.4710323041. The cubic root of 671456155 is about 875.6674765495.

The spelling of 671456155 in words is "six hundred seventy-one million, four hundred fifty-six thousand, one hundred fifty-five".