1671667503 has 16 divisors (see below), whose sum is σ = 2515363200. Its totient is φ = 978195680.

The previous prime is 1671667499. The next prime is 1671667553. The reversal of 1671667503 is 3057661761.

It is not a de Polignac number, because 1671667503 - 2² = 1671667499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671667553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872433 + ... + 874346.

It is an arithmetic number, because the mean of its divisors is an integer number (157210200).

Almost surely, 2^1671667503 is an apocalyptic number.

1671667503 is a deficient number, since it is larger than the sum of its proper divisors (843695697).

1671667503 is a wasteful number, since it uses less digits than its factorization.

1671667503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746822.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 1671667503 is about 40886.0306584046. The cubic root of 1671667503 is about 1186.8157468601.

The spelling of 1671667503 in words is "one billion, six hundred seventy-one million, six hundred sixty-seven thousand, five hundred three".