1672176261 has 16 divisors (see below), whose sum is σ = 2616946304. Its totient is φ = 929703744.

The previous prime is 1672176257. The next prime is 1672176269. The reversal of 1672176261 is 1626712761.

It is not a de Polignac number, because 1672176261 - 2² = 1672176257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672176269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075270 + ... + 1076823.

It is an arithmetic number, because the mean of its divisors is an integer number (163559144).

Almost surely, 2^1672176261 is an apocalyptic number.

It is an amenable number.

1672176261 is a deficient number, since it is larger than the sum of its proper divisors (944770043).

1672176261 is a wasteful number, since it uses less digits than its factorization.

1672176261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152140.

The product of its digits is 42336, while the sum is 39.

The square root of 1672176261 is about 40892.2518455514. The cubic root of 1672176261 is about 1186.9361337913.

The spelling of 1672176261 in words is "one billion, six hundred seventy-two million, one hundred seventy-six thousand, two hundred sixty-one".