672155711 has 2 divisors, whose sum is σ = 672155712. Its totient is φ = 672155710.

The previous prime is 672155683. The next prime is 672155773. The reversal of 672155711 is 117551276.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672155711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672155791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336077855 + 336077856.

It is an arithmetic number, because the mean of its divisors is an integer number (336077856).

Almost surely, 2^672155711 is an apocalyptic number.

672155711 is a deficient number, since it is larger than the sum of its proper divisors (1).

672155711 is an equidigital number, since it uses as much as digits as its factorization.

672155711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 35.

The square root of 672155711 is about 25925.9659607892. The cubic root of 672155711 is about 875.9714754617.

The spelling of 672155711 in words is "six hundred seventy-two million, one hundred fifty-five thousand, seven hundred eleven".