672156311 has 2 divisors, whose sum is σ = 672156312. Its totient is φ = 672156310.

The previous prime is 672156283. The next prime is 672156341. The reversal of 672156311 is 113651276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672156311 - 2¹⁰ = 672155287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672156341) 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, 336078155 + 336078156.

It is an arithmetic number, because the mean of its divisors is an integer number (336078156).

Almost surely, 2^672156311 is an apocalyptic number.

672156311 is a deficient number, since it is larger than the sum of its proper divisors (1).

672156311 is an equidigital number, since it uses as much as digits as its factorization.

672156311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 672156311 is about 25925.9775321973. The cubic root of 672156311 is about 875.9717361071.

The spelling of 672156311 in words is "six hundred seventy-two million, one hundred fifty-six thousand, three hundred eleven".