671013655 has 24 divisors (see below), whose sum is σ = 888431328. Its totient is φ = 486135936.

The previous prime is 671013653. The next prime is 671013677. The reversal of 671013655 is 556310176.

It is not a de Polignac number, because 671013655 - 2¹ = 671013653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671013655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671013653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37294 + ... + 52276.

It is an arithmetic number, because the mean of its divisors is an integer number (37017972).

Almost surely, 2^671013655 is an apocalyptic number.

671013655 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

671013655 is a deficient number, since it is larger than the sum of its proper divisors (217417673).

671013655 is a wasteful number, since it uses less digits than its factorization.

671013655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067 (or 15054 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 671013655 is about 25903.9312653504. The cubic root of 671013655 is about 875.4750748041.

It can be divided in two parts, 67101 and 3655, that added together give a square (70756 = 266²).

The spelling of 671013655 in words is "six hundred seventy-one million, thirteen thousand, six hundred fifty-five".